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Consider the following statements regarding Terrestrial Planets:
1. They have a thick atmosphere, mostly of helium and hydrogen.
2. They are made up of rock and metals and have relatively high densities.
1. They have a thick atmosphere, mostly of helium and hydrogen.
2. They are made up of rock and metals and have relatively high densities.
Q. Which of the above statements is/are incorrect?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider the following statements regarding Terrestrial Planets:1. The...
Statement 1 is incorrect: Jovian (and not terrestrial) planets have a thick atmosphere, mostly of helium and hydrogen.
Supplementary notes:
Our Solar system
- Out of the eight planets, Mercury, Venus, Earth, and Mars are called the ‘inner planets’ as they lie between the Sun and the belt of asteroids the other four planets - Jupiter, Saturn, Uranus, and Neptune - are called the ‘outer planets’.
- Alternatively, the first four are called Terrestrial, meaning earth-like as they are made up of rock and metals, and have relatively high densities. The rest five are called Jovian or Gas Giant planets.
- Jovian means Jupiter-like. Most of them are much larger than the terrestrial planets and have a thick atmosphere, mostly of helium and hydrogen.
- All the planets were formed in the same period sometime about 4.6 billion years ago.
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Consider the following statements regarding Terrestrial Planets:1. The...
Incorrect Statement Regarding Terrestrial Planets:
1. Thick Atmosphere Composition:
- The statement that terrestrial planets have a thick atmosphere mostly of helium and hydrogen is incorrect.
- Terrestrial planets, including Mercury, Venus, Earth, and Mars, have thin atmospheres compared to gas giants like Jupiter and Saturn.
- The atmospheres of terrestrial planets are primarily composed of gases like nitrogen, oxygen, carbon dioxide, and other trace elements.
- For example, Earth's atmosphere is predominantly nitrogen and oxygen, with other gases making up a small percentage of the composition.
2. Composition and Density:
- The correct statement is that terrestrial planets are made up of rock and metals and have relatively high densities.
- The terrestrial planets have solid surfaces composed mainly of silicate rocks and metals like iron and nickel.
- Due to their rocky composition, terrestrial planets have higher densities compared to gas giants.
- This composition gives terrestrial planets a solid surface that differentiates them from gas giants, which lack a solid surface.
Therefore, the incorrect statement among the given options is that terrestrial planets have a thick atmosphere mostly of helium and hydrogen (Option A).
1. Thick Atmosphere Composition:
- The statement that terrestrial planets have a thick atmosphere mostly of helium and hydrogen is incorrect.
- Terrestrial planets, including Mercury, Venus, Earth, and Mars, have thin atmospheres compared to gas giants like Jupiter and Saturn.
- The atmospheres of terrestrial planets are primarily composed of gases like nitrogen, oxygen, carbon dioxide, and other trace elements.
- For example, Earth's atmosphere is predominantly nitrogen and oxygen, with other gases making up a small percentage of the composition.
2. Composition and Density:
- The correct statement is that terrestrial planets are made up of rock and metals and have relatively high densities.
- The terrestrial planets have solid surfaces composed mainly of silicate rocks and metals like iron and nickel.
- Due to their rocky composition, terrestrial planets have higher densities compared to gas giants.
- This composition gives terrestrial planets a solid surface that differentiates them from gas giants, which lack a solid surface.
Therefore, the incorrect statement among the given options is that terrestrial planets have a thick atmosphere mostly of helium and hydrogen (Option A).
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Consider the following statements regarding Terrestrial Planets:1. They have a thick atmosphere, mostly of helium and hydrogen.2. They are made up of rock and metals and have relatively high densities.Q. Which of the above statements is/are incorrect?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?
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Consider the following statements regarding Terrestrial Planets:1. They have a thick atmosphere, mostly of helium and hydrogen.2. They are made up of rock and metals and have relatively high densities.Q. Which of the above statements is/are incorrect?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements regarding Terrestrial Planets:1. They have a thick atmosphere, mostly of helium and hydrogen.2. They are made up of rock and metals and have relatively high densities.Q. Which of the above statements is/are incorrect?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regarding Terrestrial Planets:1. They have a thick atmosphere, mostly of helium and hydrogen.2. They are made up of rock and metals and have relatively high densities.Q. Which of the above statements is/are incorrect?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?.
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