Across
- 4. protecting nature and its resources
- 8. comes from natural sources that replenish themselves constantly
- 10. what energy comes from the sun
- 11. using natural resources too much or too fast, so they don’t have enough time to recover
- 12. natural homes for animals
Down
- 1. the gas do plants produce during photosynthesis that is essential for humans and animals to breathe
- 2. the cutting down of trees
- 3. an unsustainable farming that harms the soil called
- 5. reduce,reuse and _______
- 6. what gas do plants absorb from the air
- 7. an environmental issue is caused by excess greenhouse gases
- 9. Environmental problem caused by harmful waste