Question

What is Ice Age and what reason did Ice Age accure​

Answer 1

Answer:

glacial episode during a past geological period.

the series of glacial episodes during the Pleistocene period.

Explanation:

I don't know how it occured?

Answer 2

Answer:

ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and greenhouse periods, during which there are no glaciers on the planet.