The given statement is False.
Africa was not covered with glaciers during the Pleistocene ice age. Africa was divided into different parts and some part of Africa was was greener and full of different kinds of species.
The tropical Africa had 5 degree less than the temperature of the Africa right now. There were different plant and animals species present at that time.
I think it is C as plants take in Co2 and release oxygen which humans use to breathe.
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The answer is:C
Explaination
So you can find the x and y-intercept
