Below is a text with blanks. Click on each blank, a list of choices will appear. Select the appropriate answer choice for each blank.
下面的文本有一些空格。点击每个空格会出现一组选项，请为每个空格选出最合适的答案。
At the end of the last ice age, the melting ice disrupted the ocean currents in the North Atlantic and a drop in temperature of almost 5 degrees. the rest of the planet was warming , the North Atlantic region remained in a cold period for 1300 years. The same thing happened 8000 years ago, when the cooling lasted about a hundred years, and it happen again today. Even a short period of cooling in the North Atlantic could have a dramatic effect on the wildlife, and the human populations, living there.
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