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Consider the following statements:
1. The Earth is currently believed to be undergoing the sixth mass extinction.
2. The current species extinction rates are estimated to be several times faster than in pre-human times.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements:1. The Earth is currently believed t...
- A mass extinction is a short period of geological time in which a high percentage of biodiversity, or distinct species—bacteria, fungi, plants, mammals, birds, reptiles, amphibians, fish, invertebrates—dies out. In this definition, it’s important to note that, in geological time, a ‘short’ period can span thousands or even millions of years.
- The planet has experienced five previous mass extinction events, the last one occurring 65.5 million years ago which wiped out the dinosaurs from existence. Experts now believe we are in the midst of a sixth mass extinction. Hence statement 1 is correct.
- The ‘Sixth Extinction’ is presently in progress different from the previous episodes. The difference is in the rates; the current species extinction rates are estimated to be 100 to 1,000 times faster than in pre-human times and our activities are responsible for the faster rates. Ecologists warn that if the present trends continue, nearly half of all the species on Earth might be wiped out within the next 100 years. Hence statement 2 is correct.
- Unlike previous extinction events caused by natural phenomena, the sixth mass extinction is driven by human activity, primarily (though not limited to) the unsustainable use of land, water and energy use, and climate change.
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Consider the following statements:1. The Earth is currently believed t...
Explanation:
1. The Earth is currently believed to be undergoing the sixth mass extinction:
- This statement is correct. Scientists believe that we are currently experiencing the sixth mass extinction event in Earth's history. This is due to the significant loss of biodiversity caused by human activities such as habitat destruction, climate change, pollution, and overexploitation of resources.
2. The current species extinction rates are estimated to be several times faster than in pre-human times:
- This statement is also correct. The current rate of species extinction is estimated to be much higher than the natural background extinction rate observed in pre-human times. Human activities have accelerated the extinction of species, leading to a biodiversity crisis.
Therefore, both statements are correct. The Earth is indeed facing a mass extinction event, and the current species extinction rates are significantly faster than in pre-human times. This highlights the urgent need for conservation efforts to protect biodiversity and prevent further loss of species.
1. The Earth is currently believed to be undergoing the sixth mass extinction:
- This statement is correct. Scientists believe that we are currently experiencing the sixth mass extinction event in Earth's history. This is due to the significant loss of biodiversity caused by human activities such as habitat destruction, climate change, pollution, and overexploitation of resources.
2. The current species extinction rates are estimated to be several times faster than in pre-human times:
- This statement is also correct. The current rate of species extinction is estimated to be much higher than the natural background extinction rate observed in pre-human times. Human activities have accelerated the extinction of species, leading to a biodiversity crisis.
Therefore, both statements are correct. The Earth is indeed facing a mass extinction event, and the current species extinction rates are significantly faster than in pre-human times. This highlights the urgent need for conservation efforts to protect biodiversity and prevent further loss of species.
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Consider the following statements:1. The Earth is currently believed to be undergoing the sixth mass extinction.2. The current species extinction rates are estimated to be several times faster than in pre-human times.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?
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