Across
- 4. Involves gases of the atmosphere including CO2 and O2
- 5. Keeps the planet warm
- 7. Due to execessive quantites of greenhouse gases in the atomsphere too much of sun's
- 10. Life needs water to survive. Plants and animals need water to process nutrients
- 12. is trapped.
Down
- 1. production of massive quantities if oxygen which allow other forms to develope and vary
- 2. Anything made up of water such as Lakes, Oceans, pools
- 3. How fast population changes overtime
- 6. produces H2O and CO2
- 8. all rocks that make up Earth
- 9. produces O2 and C6H12O6
- 11. Plants and animals rely on each other through photosynthesis and cellular respiration