Across
- 2. The term is most often applied to the Earth or some parts of Earth.
- 6. Long-term heating of Earth's climate system.
- 8. Being decomposed by bacteria or other living organisms and thereby avoiding pollution.
- 11. Made from decomposing plants and animals.
- 12. Forest that are lost for other uses such as agricultural croplands, urbanization.
Down
- 1. A site for the disposal of waste materials.
- 3. Carbon dioxide, methane, nitrous oxide, and ozone are examples of.
- 4. The introduction of harmful materials into the environment.
- 5. The production of something especially gas or radiation.
- 7. The amount of carbon dioxide released into the atmosphere as a result of the human activities.
- 9. Consists of all the organisms and the physical environment with which they interact.
- 10. The maintenance and upkeep of a natural resource.
