Answer:
I believe it is D
Explanation:
Scientists cut open ice cores to look at gases to see the gas concentration and therefore the climate change
Its location makes it a natural meeting place<span>
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<span>the historical periods in which earth's population begin to rapidly rise is: B. Industrial revolution
After the industrial revolution, nations no longer conduct the act of war and conquest as an effort to increase a nation's wealth. As a result, the competition change in term of production. This cause the life expectancy of an average person is increaased and the number of population begin to rapidly rise</span>
