Across
- 4. Used as moderator in nuclear reactors.
- 5. Heat produced by burning unit mass of a fuel.
- 6. A substance added to LPG to detect its leakage.
- 11. Used to make solar cells.
- 13. A substance obtained as residue when wood is burned in limited supply of oxygen
- 14. The agent which decomposes animal dung into biogas.
- 16. A fuel which has high calorific value but does not contain carbon.
Down
- 1. The minimum temperature at which a substance catches fire.
- 2. Materials burnt to produce heat energy.
- 3. Aviation fuel used in the engines of jet aeroplanes.
- 7. Used as control rods in nuclear reactors.
- 8. Main constituent of Petroleum gas.
- 9. 1.4kJ/s/m^2 is the value of_________.
- 10. Radiations present in sunlight which causes heating effect.
- 12. Ultimate source of energy stored in fossil fuels.
- 15. Major component of Bio gas.