ACROSS
4.Also known as crude oil
5. Used for surfacing of roads
6.
The slow process of conversion of dead vegetation into coal
DOWN
1.It is also known as black lignite
2. A hydrocarbon made up of carbon and hydrogen and has a chemical formula CH,
3.Thick black-liquid obtained from destructive distillation of coal.
Answers
Answered by
3
Answer:
1) petroleum
5) bitumen
6) carbonizatiob
down
1) subbituminous coal
2) methan
3) coal tar
Explanation:
Similar questions