Across
- 2. materials in a natural state
- 4. rise
- 6. an amount of gas, heat, light, etc. that is sent out
- 9. the quality of being poisonous, or the degree to which something is poisonous
- 10. the process of getting rid of large amounts of rubbish by burying it
- 11. the purposeful clearing of forested land
- 13. all the living things in an area and the way they affect each other and the environment
- 14. a narrow area of water such as a river or canal
- 15. waste material or unwanted things that you throw away
Down
- 1. water that falls from the clouds towards the ground, especially as rain or snow
- 3. influence
- 5. to make something less pure or make it poisonous
- 7. a harmful substance that causes pollution
- 8. a large mass of ice that moves slowly overland
- 12. the measured amount of heat in a place