Across
- 1. warming greenhouses gases increases
- 6. density of prey population affects number of population
- 8. pollution produced by fossil fuel emissions
- 10. decreases in size over short period time
Down
- 2. factor keeps the population down
- 3. emitting foul odors
- 4. rain Pollutants in the water cycle react with water
- 5. effect keeps the earth warm
- 7. unseasonably high or low rainfall or temp
- 9. protects the sun's rays
- 11. layer of warm air that settles over a layer of cool air that lays near the ground