Conditionals and Environment

12345678910111213
Across
  1. 4. A modal verb used in second conditional sentences.
  2. 6. The protection of nature, animals, and natural resources.
  3. 7. A word meaning “if not,” used in conditional sentences.
  4. 8. Cutting down large areas of trees and forests.
  5. 10. A verb used in the third conditional with “if.”
  6. 11. Power that comes from sources like the sun, wind, or water.
  7. 12. When a species of animal or plant disappears forever.
Down
  1. 1. Long-term changes in global weather patterns.
  2. 2. The rise in Earth’s temperature caused by greenhouse gases.
  3. 3. Dirtying the air, water, or land with harmful substances.
  4. 5. The trapping of heat in the Earth’s atmosphere.
  5. 9. To process materials like paper or plastic so they can be reused.
  6. 13. The word that introduces a conditional sentence.