Multiple Choice QuestionIce cores tell us about ancient climates because Blank______.Multiple choice question.frozen water has changed its composition over timeair bubbles contain tiny samples of the ancient atmospherevolcanic ash deep in the ice reveals atmospheric changes
Question
Multiple Choice QuestionIce cores tell us about ancient climates because Blank______.Multiple choice question.frozen water has changed its composition over timeair bubbles contain tiny samples of the ancient atmospherevolcanic ash deep in the ice reveals atmospheric changes
Solution
Ice cores tell us about ancient climates because air bubbles contain tiny samples of the ancient atmosphere. This is because as snow falls and gradually turns into ice, it traps air bubbles. These bubbles, effectively, are tiny time capsules that allow us to sample the composition of the atmosphere at the time the ice was formed. This includes information about temperature, greenhouse gas levels, and even evidence of volcanic activity.
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