Across
- 4. Cutting down forests on a large scale.
- 6. Planting trees on barren or non-forest land.
- 7. The natural home of plants and animals.
- 8. Contamination of air, water, or land.
- 9. The process of converting waste into reusable materials.
- 10. Gas released by plants during photosynthesis.
Down
- 1. Variety of plants and animals found in an ecosystem.
- 2. Protection of natural resources for future generations.
- 3. Energy obtained from sources like the sun and wind.
- 5. The layer of gases surrounding the Earth.