Across
- 4. the process of turning from liquid into vapour
- 6. process used by plants to create oxygen and energy
- 7. chemical substances used to improve the quality of plants
- 8. the action of clearing a wide area of trees
- 10. the process of reducing nitrite to nitrate
- 12. the process of change of substances in gas form to liquid form
- 13. the process of green plants converting to ammonia
- 15. breaking down of components
- 16. the evaporation of water from plants through the stomata
Down
- 1. chemical substances used to improve the quality of soil
- 2. valuable gem made out of carbon
- 3. burning of glucose to produce energy
- 5. the process of water vapors falling to the ground due to gravitational pull
- 9. the process where rocks get deposited into rivers
- 11. harmful substances not to be released into the environment
- 14. aquatic, symbiotic bacteria