Across
- 3. A synonym to "toxin"
- 5. Solar, wind, hydro energies are ________
- 6. Polluting material found everywhere.
- 7. Antonym of"to waste"
Down
- 1. To inhale and exhale
- 2. a species' orginal living place
- 3. Harmful substances in the air, land, and water
- 4. Reduce, reuse, _________