Earth Day

12345678
Across
  1. 4. To convert organic food leftovers to rich soil
  2. 5. The ability to be maintained at a certain rate
  3. 6. the introduction of substances or energy (such as light or heat) into the natural environment in amounts or concentrations that can be harmful for humans, animals, and plants
  4. 7. To protect natural resources
  5. 8. The large-scale removal of trees for other land uses
Down
  1. 1. Collecting items that would be thrown in the trash and turn them into new poducts
  2. 2. The variety of all life forms on Earth
  3. 3. The planet in which we live in