Question

During the Pleistocene, a land bridge connected Alaska and Asia. What could have caused this bridge to from? the ending of an ice age the beginning of an ice age the erosion of the Alaskan coastline the erosion of the Asian coastline

Answer 1

The appropriate answer is b. the ending of an ice age. The Pleistocene epoch began 1.8 million years ago. The last ice age is known as the Wisconsin Glaciation, which peaked around 18,000 years ago. During this period there was more than three times the amount of ice on Earth today.
The continents were larger because water was locked in ice and so the shelves surrounding the continents were exposed. The land bridge between Asia and Alaska was created because of this drop in sea level.

Answer 2

The correct answer is beginning of ice age.

During the time of ice age, the supply of water of locked in the ice of the glaciers.

The level of sea worldwide decreased and the land came out of the sea and joined the two continents.

The environment of the Bering bridge was very dried so it remained a dried and there were no glaciers during the whole ice age.