EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Scientists use ice cores to identify and explain previous climatic trends. By correlating climatic conditions recorded in the ice, with solid, non-snow particles also found in the ice, scientists can help to predict the climatic impact of which phenomenas?
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atmospheric carbon dioxide concentration changes
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radioactive decay rate changes in the outer core
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volcanic eruptions
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magnetic pole reversals
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Explanation:
Detailed explanation-1: -Determining the age of the ice in an ice core can be done in a number of ways. Counting layers, chemical analysis and mathematical models are all used. Annual layers of snowfall recorded in an ice core can be counted-in much the same way that tree-rings can be counted-to determine the age of the ice.
Detailed explanation-2: -How do scientists use ice to study ancient climates?through glacial deposits and ice cores. through glacial deposits and ice ages. through ice cores and and Earth’s ellipse. through Earth’s ellipse and ice ages.
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