Question

What is permafrost? (1 point)

It is ground that thaws out completely every summer.

It is a large mass of ice that moves slowly over land.

It is a type of moss that grows only in arctic regions.

It is soil that remains frozen for two or more years.

How did glacial activity shape the fertile soils of the Great Plains? (1 point)

Covering the landscape with layers of volcanic ash.

Carrying fine silt down from the mountain ranges.

Depositing rich sediment from their melted ice streams.

Breaking down large rocks through wind and erosion.

Which U.S. states contain the Cascade Range? (1 point)

Arizona, New Mexico, and Texas

Washington, Oregon, and California

Wyoming, Montana, and Idaho

Nevada, Utah, and Colorado

This biome is made up of milions of tiny animals with hard shells around their bodies.(1 point)

cay

swamp

coral reef

everglade

Answer 1

1) It is soil that remains frozen for two or more years.

2) Depositing rich sediment from their melted ice streams.

3) Washington, Oregon, and California.

4) Coral reef.