Earth's Resources

9. A resource that cannot be easily replaced once it is used up.
10. Working well without wasting much time, energy, or resources for a certain effect.
12. From deep sea vents to mountaintops, life exists everywhere in the ________________.
13. To change something completely in form, appearance, or nature.
14. A solid material made up of one or more minerals that forms the Earth's crust.
16. A resource that can be easily replace or renewed within a human's lifetime.

1. The layer of gases, like air, that surrounds our planet.
2. A solid non-living substance found naturally in the Earth, like quartz or gold.
3. Substances that are harmful or poisonous to humans and other organisms added to the water, air, or soil.
4. Electricity created by the power of moving water, usually from a dam.
5. To arrange or group things together based on their shared qualities or features.
6. The careful protection and management of natural resources to prevent their waste or destruction.
7. The ocean is the largest part of the ______________ on our planet.
8. A change that happens due to an action either by humans or nature.
9. A fossil fuel found underground, made of methane and other gases, that used for heating and making electricity.
11. Resource Something useful found in nature that humans can use, like coal, soil, or trees.
15. Mountains and canyons are features of the ____________ that we study in class.