The prevailing theory of our Moons origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moons crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASAs Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moons age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moons crust.Correct answer is option 'C'. Can you explain this answer?

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The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.

This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.

The passage supports which of the following statements?

a)
In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.
b)
If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.
c)
The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.
d)
A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.
e)
Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.

Correct answer is option 'C'. Can you explain this answer?

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The prevailing theory of our Moon's origin is that it was created ...

Passage Analysis

Summary and Main Point

Prethinking

Since this is a Global Inference question, we cannot pre-think on specific lines. However, we must keep in mind that four out of the five given answer choices will not follow from what is stated in the passage; these answer choices are INCORRECT. Select the answer choice that is bolstered by specific facts/ideas mentioned in the passage.

Answer Choices

In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.

Incorrect: Out of Scope

We are told that it is possible that the FAN sample does not belong to the original magma that cooled down to form the Moon, meaning that it is not a part of the ancient crust of the Moon as it was thought to be. This ancient crust was formed of the lightest minerals in the magma. However, if the sample itself does not represent the magma, no conclusion can be drawn regarding its weight properties. Also, this choice says “light” mineral, which is an absolute judgment; the passage makes a comparison between the minerals on the crust and other minerals in the magma.

If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.

Incorrect: Inconsistent

The passage says that if the Moon was formed at a stage later than 4.567 billion years ago, the age of the solar system, then existing models of Moon formation need to be revised. However, the finding has no stated implication for the age of the solar system itself.

The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.

Correct

This statement can be inferred from the author’s analysis of the implications of the findings. Please refer to the relevant section below:

The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.

A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.

Incorrect: Out of Scope

There is no information given to conclude anything about the application of these dating techniques in other fields.

Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.

Incorrect: Out of Scope

There is no information given in the passage to support any inference about other scientific missions.

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The prevailing theory of our Moons origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moons crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASAs Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moons age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage states which of the following?

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The prevailing theory of our Moons origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moons crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moons age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.Which of the following captures the primary purpose of the passage?

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The accumulation of scientific knowledge regarding the environmental impact of oil well drilling in North America has tended to lag behind the actual drilling of oil wells. Most attempts to regulate the industry have relied on hindsight: the need for regulation becomes apparent only after undesirable events occur. The problems associated with oil wells’ potential contamination of groundwater—fresh water within the earth that supplies wells and springs—provide a case in point.When commercial drilling for oil began in North America in the mid-nineteenth century, regulations reflected the industry’s concern for the purity of the wells’ oil. In 1893, for example, regulations were enacted specifying well construction requirements to protect oil and gas reserves from contamination by fresh water. Thousands of wells were drilled in such a way as to protect the oil, but no thought was given to the possibility that the groundwater itself might need protection until many drinking-water wells near the oil well sites began to produce unpotable, oil contaminated water.The reason for this contamination was that groundwater is usually found in porous and permeable geologic formations near the earth’s surface, whereas petroleum and unpotable saline water reservoirs are generally found in similar formations but at greater depths. Drilling a well creates a conduit connecting all the formations that it has penetrated. Consequently, without appropriate safeguards, wells that penetrate both groundwater and oil or saline water formations inevitably contaminate the groundwater. Initial attempts to prevent this contamination consisted of sealing off the groundwater formations with some form of protective barrier to prevent the oil flowing up the well from entering or mixing with the natural groundwater reservoir. This method, which is still in use today, initially involved using hollow trees to seal off the groundwater formations; now, however, large metal pipe casings, set in place with cement, are used.Regulations currently govern the kinds of casing and cement that can be used in these practices; however, the hazards of insufficient knowledge persist. For example, the long-term stability of this way of protecting groundwater is unknown. The protective barrier may fail due to corrosion of the casing by certain fluids flowing up the well, or because of dissolution of the cement by these fluids. The effects of groundwater bacteria, traffic vibrations, and changing groundwater chemistry are likewise unassessed. Further, there is no guarantee that wells drilled in compliance with existing regulations will not expose a need for research in additional areas: on the west coast of North America, a major disaster recently occurred because a well’s location was based on a poor understanding of the area’s subsurface geology. Because the well was drilled in a channel accessing the ocean, not only was the area’s groundwater completely contaminated, but widespread coastal contamination also occurred, prompting international concern over oil exploration and initiating further attempts to refine regulations.Which one of the following most accurately states the main point of the passage?

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he level of lead contamination in United States rivers declined between 1975 and 1985. Federal regulations requiring a drop in industrial discharges of lead went into effect in 1975, but the major cause of the decline was a 75 percent drop in the use of leaded gasoline between 1975 and 1985.Which of the following, if true, best supports the claim that the major cause of the decline in the level of lead contamination in United States rives was the decline in the use of leaded gasoline?

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Directions: Each Data Sufficiency problem consists of a question and two statements labeled (1) and (2), that provide data. Based on the data given plus your knowledge of mathematics and everyday facts, you must decide whether the data are sufficient for answering the question. The five answer choices are the same for every data sufficiency question.Helena invested $8000 in the Tallahassee City Bank at z% simple annual interest for one year with a yield of $450. How much should she invest at s% simple annual interest for one year to yield the same amount?(1) s/100 = 3/4(2) s = .4z

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The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.Correct answer is option 'C'. Can you explain this answer?

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The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.Correct answer is option 'C'. Can you explain this answer? for GMAT 2025 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GMAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.Correct answer is option 'C'. Can you explain this answer?.

Solutions for The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for GMAT. Download more important topics, notes, lectures and mock test series for GMAT Exam by signing up for free.

Here you can find the meaning of The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.Correct answer is option 'C'. Can you explain this answer?, a detailed solution for The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The prevailing theory of our Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth very early in the evolution of our solar system. The energy of this impact was sufficiently high that the Moon formed from melted material that began with a deep liquid magma ocean. As the Moon cooled, this magma ocean solidified into different mineral components, the lightest of which floated upwards to form the oldest crust. Although samples of this presumed ancient crust were brought back to Earth by the Apollo 16 mission in 1972, it was not until recently that scientists could successfully date them. Recent analysis of one of the samples, a rock called ferroan anorthosite or FAN, which is believed to be the oldest of the Moon's crustal rocks, has given scientists new insights into the formation of the Moon, suggesting that the Moon may be much younger than currently believed.The sample that had been carefully stored at NASA’s Johnson Space Center had to be extensively pre-cleaned to remove terrestrial contamination. Once the sample was contamination free, the researchers were able to study it. The team analyzed the isotopes of the elements lead and neodymium to place the age of the sample at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range to nearly as old as the age of the solar system itself at 4.567 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from Western Australia -- suggesting that the oldest crust on both Earth and the Moon formed at approximately the same time.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which this sample crystallized. The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates -- and therefore the moon itself is much younger than previously believed -- or that this sample does not represent a crystallization product of the original magma ocean. Either scenario requires major revision to existing models for the formation of the Moon.The passage supports which of the following statements?a)In the light of the analysis done on the FAN sample, it is possible that ferroan anorthosite is not a light mineral.b)If the Moon was indeed formed 4.36 billion years ago, then the age of the solar system itself needs to be reconsidered.c)The fact that the moon was not formed at a much later stage than generally believed does not affect the requirement for significant changes in the existing theory of Moon formation.d)A consistent result from multiple isotope dating techniques had never been achieved in any field before the mentioned study on the FAN sample.e)Since the Apollo 16 mission in 1972, scientists have not been able to obtain more samples from the Moon’s crust.Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice GMAT tests.

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