There is a device called a thermometer for that...
The answer is B. folding, uplift, and erosion. certain mountains are created from the folding of the upper layers of earth's crust. valleys on the other hand are made from the erosion of land or soil. tectonic uplift of the earths crust is also responsible for creating mountains.
Answer: The answer is a Dead Zone.
Explanation:
Is there multiple choice? I know one is the Gobi, and I think the other is the Taklamakan desert. But I'm not sure about the latter.