Answer：
China faces serious social and economic problems associated with overpopulation in the years to come. Overly populated regions lead to degradation of land and resources, pollution, and detrimental living conditions.
Answer:
<em><u>#1 and #2</u></em>
Explanation:
The Crust is both the thinnest layer of the Earth's lithosphere as well as the outermost layer of the lithosphere.
Answer:я не понимаю тебя
Explanation:both?
