Across
- 2. to protect nature, animals, and the environment
- 4. many different kinds of animals, plants, and other living things in one place or on Earth.
- 5. a type of animal or plant that doesn't exist any more.
- 8. all the animals, birds, and plants that live freely in nature
- 9. all the living things, like animals and plants, and the places where they live, working together in nature.
Down
- 1. the natural place where an animal or plant lives.
- 3. when the air, water or land becomes dirty
- 6. species of animals or plants that may disappear soon
- 7. to cut down or remove a lot of trees from an area