Across
- 2. – Layer that protects Earth from harmful rays
- 3. – Animals living freely in nature
- 4. – Trees, rivers, animals — everything not man-made
- 6. – The usual weather of a place
- 7. – Material we should use less to help the Earth
- 8. – Using something again to avoid waste
Down
- 1. – Harmful stuff in air, water, or land
- 5. - To use again instead of throwing away