Across
- 2. the layer that protects the earth from the sun
- 4. Reduce, Reuse, ____
- 6. a gas commonly emitted by cows
- 7. these types of farms use worms
- 9. the warming of the planet
- 10. Make up ~75% of our planet
Down
- 1. The destruction of forests
- 3. Absorb CO2 and produce oxygen
- 5. When a species dies out, it becomes ____
- 8. a type of rain that causes environmental harm