Across
- 1. Substances or things introduced into the environment that has harmful or poisonous effects.
- 4. Transfer of energy from plants through a series of animals to humans.
- 7. Smaller or lesser in size.
- 8. Reusing discarded objects to create a product of higher value than the original.
- 11. Gradual increase in the overall temperature of the earth's atmosphere.
- 12. Converting waste into reusable material.
- 13. earth's largest natural source of energy.
- 14. our world.
Down
- 2. Plants and trees release it into the air.
- 3. Absorbs the sun's rays as a source of energy that generates electricity.
- 5. Clearing a wide area of trees.
- 6. Earth day is celebrated in this month.
- 9. protect from harm or destruction (environment)
- 10. Decayed organic material used as a plant fertilizer.