Across
- 4. are used in construction.
- 5. means choosing to use things with care to reduce the amount of waste generated.
- 6. gets polluted because of factories, sewage, and oil spills.
- 8. provide us with many sources of healthy seafood.
- 9. dioxide is a gas that can contribute to global warming?
- 11. is to use again especially in a different way or after reclaiming or reprocessing. the need to reuse scarce resources. reuse packing material as insulation.
- 13. is a gas do we breathe to stay alive
- 15. and insects refers to creatures like mammals, birds, and insects that live on Earth?
- 16. has many natural minerals that we need in our everyday life.
- 17. is the outermost layer of the Earth where plants grow and where we find things like grass and flowers?
- 18. takes in carbon dioxide and provides us with oxygen
Down
- 1. is made up of different elements.
- 2. is very dangerous to the environment because it can destroy our natural resources and harm the climate
- 3. plays an vital role in the survival of human beings.
- 4. solid substances found in the Earth's crust, like gold, iron, and copper?
- 7. only covers about 29% of the earths surface.
- 10. is the term for harmful substances released into the environment that can be dangerous to our health?
- 11. means the use of waste itself as resources.
- 12. help plants to grow that provides us with food.
- 14. absorbs carbon dioxide and releases the oxygen we breath