A) Refining
B) Threshing
C) Condensation
D) Carbonization
Correct Answer: D
Solution :
About 300 million years ago, there were dense forests in low lying wetland areas of the earth. These forests got buried under the soil because of some natural processes such as flooding. Over the course of time, more soil deposited over them and they were exposed to high temperature and pressure conditions. Under the said conditions, this vegetation got slowly converted into coal. This process is called carbonization. The correct answer is D.
You need to login to perform this action.
You will be redirected in
3 sec
