Across
- 1. materials which easily break down in the soil
- 5. raw materials are clay and sand
- 7. main gas responsible for global warming
- 10. fusion of 2 gametes
- 12. a measure of how much distance traveled in a particular time
- 14. DNA is found in these structures
- 15. a composite material used in buildings due to its fireproof properties
- 16. many monomers get together to form these
Down
- 2. when the clockwise moment balances the anti clockwise moment, the object is said to be in ..........
- 3. energy from the sun
- 4. a force which reduces the speed of a moving object
- 6. polymerization of many amino acids form these
- 8. reactions which gives out heat to the surrounding
- 9. chemical name of this is calcium oxide
- 11. another name of this is calcium carbonate
- 13. using the same materials over again