Answer:
Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy
Explanation:
Answer:
B.) Covers one-half of the earth
Explanation:
The desert doesn't cover one-half of the earth. In fact, true deserts only cover about 14 percent of the world's land area.
This might be a little late but I hope it helps. :)
Incoming solar radiation is almost double at the equator then at the poles, causing the water closer to the equator to be warmer. The heat difference also causes the oceans to swirl so the water that is around the equator will eventually end up at the poles and keep circulating around.
