Question

Make this sentence shorter but not to short

Near the end of the last ice age over 10,000 years ago there was a time when the climate was warming and the glaciers that cloaked the earths began their slow retreat the ice sheets carved out a series of basins those basins filled with water as the ice began to melt.

Answer 1

at the end of the ice age glaciers started to melt making the ocean.

Explanation:

Answer 2

Near the end of the last ice age over 10,000 years ago, the climate was warming, and the glaciers that cloaked the earth began their slow retreat the ice sheets carved out a series of basins those basins filled with water as the ice started to melt.

I modifided it and ran it through grammarly premium.