A) Carbonization
B) Distillation
C) Vaporization
D) Evaporation
Correct Answer: A
Solution :
When dead plants and animals get buried deep under the earth, they get decomposed by the action of anaerobic bacteria. Hydrogen and oxygen escape as gases leaving behind carbon. As years pass, layers of carbon atoms are added one above the other forming a stony substance called coal, this process is called carbonization.
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