Across
- 3. Campaigns are launched to raise people's ___. [aware]
- 5. Humans' activities have a(n) ___ on nature.
- 7. use st again or with a different purpose
- 8. The layer that protects us from UV light.
- 10. where people dump rubbish
- 11. It looks fierce, but it is ____.
Down
- 1. solar energy is a kind of ____ energy.
- 2. We should turn off unnecessary light to ___ electricity.
- 4. a person whose work is to protect the environment
- 6. poisonous
- 9. ____ species are put on Red List