As humans dispersed from the equator peoples skin got lighter and lighter because of fewer exposure to sun radiation.
They didn't get tanned as much :)
Answer:
Writing was Rachel Carson's greatest skill and Silent Spring was her most important contribution to the world since it launched the global environmental movement today. Carson worked to purge the United States of deadly pesticides like DDT that were used everywhere across the U.S. in agriculture and elsewhere.
Explanation:
The answer is B iknow this because i took this assignment
All the given statements are true except regions covered by glacial ice are termed periglacial environments.
<u>Explanation:</u>
Periglacial environments are regions on the edges of the glaciers. These areas or environments are not covered with ice. There is permanent frost in these environments but ice cover is lacking.
The other statements are all true. Antarctica glaciers are carving off leading to loss of glaciers. Glaciers usually move because of frictional forces between ice and its substrate. Northern Canada is experiencing glacial rebound.
