Across
- 3. A black, viscous liquid obtained from coal, used in the production of dyes, explosives, and pharmaceuticals.
- 6. The process of separating crude oil into various useful fractions based on boiling points.
- 10. The process of heating coal in the absence of air to obtain coke, coal tar, and coal gas.
Down
- 1. A mixture of gases produced during the destructive distillation of coal, used as a fuel.
- 2. The purest form of coal, known for its high carbon content and energy efficiency.
- 4. The process through which dead vegetation transforms into coal over millions of years.
- 5. A petroleum product commonly used for road surfacing.
- 7. A porous, carbon-rich material obtained from coal, utilized in metallurgy.
- 8. A fossil fuel primarily composed of methane, used for cooking and electricity generation
- 9. A fossil fuel formed from the remains of marine organisms, refined to produce fuels like petrol and diesel.