Answer: A) switch from crops to livestock.
Hope this helps, sorry if I got this wrong.
Answer:
20% of worlds population survive on 1 dollar a day
Answer:
Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy
Explanation:
The full moon is the phase which you can see the entire lighted side of the moon.
Your answer is Permafrost