Y7 Environment

2. the surroundings or conditions in which a person, animal, or plant lives or operates.
4. The number of people in an area exceeds the capacity of the environment to support life at a decent standard of living.
5. Groups of cells with a common structure and function.
8. warming that results when solar radiation is trapped by the atmosphere
9. a place to dispose of refuse and other waste material by burying it and covering it over with soil, especially as a method of filling in or extending usable land.
12. The removal of trees faster than forests can replace themselves.
13. Any natural resource (as wood or solar energy) that can be replenished naturally with the passage of time

1. a group of organisms that have the same characteristics and are abill to produce offspring that can reproduce.
3. the toxic gases given off by vehicles powered by petrol
6. everything outside the system
7. land covered with trees
10. A mixture of gases that surrounds a planet or moon.
11. Most abundant gas in the atmosphere. N