Across
- 1. we should take care of the Earth's natural ______ .
- 5. comes from cars and factories.
- 6. plants need this to grow.
- 8. trash goes there.
Down
- 1. you need an animal to _____ .
- 2. you need snow to do this.
- 3. you need a tent to go on a ______.
- 4. you can make toys from old things and _____ them.
- 5. you do this in the ocean.
- 7. this is very bad for our nature.