Some of Europe's major mountain ranges are: Ural Mountains, which form the boundary between Europe and Asia. Caucasus Mountains, which also separate Europe and Asia, and are the namesake of the Caucasian race.
Answer:
it contains the oxygen we need to live
Explanation:
What is ejected from a volcano like ash,blocks solar radiation from reaching earth’s surface. Therefore it lowers the surface temperature.
<span>When a stream floods, it deposits much of the sediment that it carries onto its floodplain as the largest pieces have a lot of weight and cannot be carried so are deposited.</span>