Based on the selection, which is correct about ice ages?
A They can last for thousands of years.
B They cause gases to be released into the air.
C They happen when large glaciers melt.
D They end when birds begin to nest in cold areas.
Based on the selection, which is correct about ice ages
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The correct answer is A: They can last for thousands of years.
Explanation: Ice ages are prolonged periods during which global temperatures are significantly lower, leading to the expansion of ice sheets and glaciers. These periods can last for tens of thousands to millions of years, significantly impacting the Earth’s climate and ecosystems. The other options are not accurate representations of the characteristics of ice ages.