Save the earth

Edit Answers
12345678910
Across
  1. 1. What term describes resources that can be replenished naturally, such as timber and water?
  2. 4. What term describes products or practices that are not harmful to the environment?
  3. 5. What type of energy is generated from sources that won't run out?
  4. 8. What term describes the gradual increase in the Earth's temperature due to human activities
  5. 9. What process give a used material a new life?
  6. 10. What term describes the practice of farming in a way that is environmentally friendly and economically viable?
Down
  1. 2. What process turns organic waste into nutrient-rich soil?
  2. 3. What term describes the amount of carbon dioxide released into the atmosphere by a person, organization, or product?
  3. 6. What term describes the variety of life on Earth?
  4. 7. What term describes gases that trap heat in the Earth's atmosphere?