Unit 5 Vocabulary

5. the presence of harmful or unwanted levels of material in the environment
7. a gas usually found in the ground positioned above petroleum deposits (nonrenewable)
8. heat is harnessed from deep beneath Earth's surface and converted to usable energy (renewable)
9. movement of water through a dam in a river is converted to usable energy energy (renewable)
11. efforts to wisely use, distribute, and protect valuable resources both natural and man-made
13. gases in the atmosphere that absorb and retain heat energy, cause air pollution
15. an energy resource such as trees or wind that is replaceable by natural means
17. disposal site for solid waste

1. turbines harness the movement of air and convert it to usable energy (renewable)
2. the splitting of Uranium atoms to release energy (non-renewable)
3. a hard, black solid fuel formed from the remains of plants over millions of years ago (nonrenewable)
4. the sun's energy is collected and converted to usable energy (renewable)
6. a flammable, yellow-to-black liquid composed of hydrocarbons occurring naturally inside Earth (nonrenewable)
7. an energy resource that takes millions of years to form from the remains of plants and animals
10. reduce, reuse, recycle
12. a natural nonrenewable fuel formed over a very long time in the past from the remains of living organisms
14. the ability to cause change
16. biological material such as plant material or animal waste converted to a usable energy source