Why does our body skin turn pinkish due to exercise?

What causes temperature extremes in the desert

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes