Across
- 2. also known as oil. this black, thick, and mushy liquid is usually located between rock layers.
- 3. added to the natural gas making it stinky.
- 6. plants & trees deposited in swamps either in saltwater or freshwater.
- 8. use to distinguish minerals from one another
- 9. The only planet in the solar system where living things as we know can thrive.
- 10. example of a natural resource that can be either renewable or nonrenewable.
- 11. transforms petroleum into gasolines
- 12. is a natural occurring, inorganic, homogeneous solid with a definite chemical composition and an ordered crystalline structure.
- 15. gas Made of methane and is formed deep within Earth.
- 17. coal, petroleum, natural gas and minerals have fixed amounts on earth.
- 18. Resources replenished by nature over a short period of time. Rely on Earth's natural processes to be renewed.
- 19. to remain renewable the __ of these resources should not exceed the rate of replenishment.
Down
- 1. is essential so that future generations will not deprived of the things that we are enjoying and using right now.
- 4. makes diff types of rock to be renewed.
- 5. One of the example of natural resources
- 7. It is in the soil that is also recycled through the nitrogen cycle.
- 10. It is replenished by nature through the hydrologic cycle.
- 13. Resources Provide necessary things needed to survive.
- 14. powers every food chain and is an example of Earth's natural resource.
- 16. this cycle makes it possible for air to be continually used.