Unit 3 3-4

2. electrical energy produced by the flow of water
6. the physical material at the surface of the Earth includes grass, trees, concrete and water
8. Energy from steam or hot water produced from hot or molten underground rocks.
10. involves the management and modification of natural environment or wilderness into built environment such as fields, pastures, and settlements
12. The percentage of the input work that is converted to output work
15. the process of decomposing and recycling organic matter as a fertilizer to enrich soils
17. the state of environmental conditions
19. Statement required by Federal law from all agencies for any project using Federal funds to assess the potential affect of the new construction or development on the environment.
20. the act of returning an ecological area back to its former condition.

1. The energy captured by transforming the motion of air into electrical energy using a turbine
3. An energy resource formed from the remains of ancient marine organisms that lived millions of years ago.
4. catching or removing from a population more organisms than the population can replace
5. an uncontrolled expansion of urban areas.
7. energy that comes from the sun
9. potential energy stored in the nucleus of an atom
11. process where once fertile land becomes a desert as a result of drought, deforestation, or other inappropriate land management practices.
13. using natural areas and wildlife in ways that sustain them for current and future generations of humans and other forms of life.
14. fossil fuel it has stored energy from carbon compressed, combusting it creates energy
16. Energy that comes from the burning of coal. It is non-renewable and produces a large amount of CO2
18. Natural things that can be converted into energy