SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are used to measure the Earth’s current temperature.
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They allow for scientists to measure the amount of radiation is being received by the Earth.
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They can be used to measure to the rising ocean levels over certain periods of time.
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They allow for scientists to see changes in temperature and the amount of C02 in the atmosphere at the time the ice was formed.
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Detailed explanation-1: -air bubbles: Bubbles trapped in ice cores give scientists actual samples of air from hundreds of thousands of years ago. By analyzing the composition of the air in these bubbles, we can find out what the atmosphere was like long ago.
Detailed explanation-2: -After analyzing enough ice core slices, which may each represent anywhere from a week to a year of time, a researcher can look for patterns to track changes in the atmosphere’s composition and temperature, and what activity on Earth shaped it.
Detailed explanation-3: -This includes key climate change indicators such as global temperatures and ice thickness. The bubbles trapped in the ice can even tell us what the air was like at the time the ice was first formed, helping us to measure the changing levels of greenhouse gases in the atmosphere.