Across
- 3. The process of gradually warming the Earth`s atmosphere due to human activities
- 4. The preservation and protection of natural resources and the environment
- 6. A material that can be decomposed by bacteria or other living organism
- 8. Region encompassing oceans and seas
Down
- 1. The process of cutting down large areas of forests
- 2. The contamination of air, water, or soil by harmful substances.
- 4. A gas that contributes to the greenhouse effect, primarly produced by burning fossil fuels.
- 5. The process of converting waste materials into reusable material
- 7. A type of energy derived from natural resources like sunlight, wind or water.