Across
- 3. Dirty air, water, or land caused by harmful substances.
- 4. What we must save and use wisely every day.
- 5. The act of turning waste into something usable again.
- 6. Green giants that clean the air and give shade.
Down
- 1. A material that pollutes oceans and takes hundreds of years to decompose.
- 2. Our natural surroundings, including air, water, plants, and animals.