Cross word

2. What is the term for the region of Earth where life exists
6. harmful materials in the environment is known as
8. a resource we need to live
11. A system formed by a community of organisms interacting in their environment.
12. energy the type of energy uses sunlight to generate electricity and heat
13. using non renewable resources ____________ our environment
15. A flammable substance
18. what is the process for protecting and managing natural resources
20. found on earth

1. a resources we need to live
3. Earth's surface layer is composed or what
4. Whats name for all living and non-living things that surround us
5. we use this to power our car
7. gas what powers our stove?
9. what is the ability to do work
10. renewable resources that can not be renewed
14. The long-term average weather conditions in a specific area
16. fuel What is a non-renewable energy that is composed of the remains of ancient plants and animals
17. it cost a lot of _____ to use non renewable resource
19. what resources can be renewed