Unit 4 Homework

5. energy from the sun
6. rising ocean temperatures and acidification cause this to happen to coral
7. water that includes rivers and lakes
10. this type of aquifer is under a great deal of pressure
11. energy is generated from the heat beneath the ground
14. mostly coal, oil, and natural gas
15. energy that can be replenished; windmills, solar power
16. the surface layer of the ocean water
18. a system of pipes, ditches, canals, etc. that transport water from a source to a distribution point
19. rain and melted snow cause this

1. this is a type of renewable energy that includes wood, animal manure, and vegetable waste
2. a type of freshwater wetland that allows plants to grow above the ground
3. a type of freshwater wetland that occurs in forests
4. a collection of trees and shrubs that live in saltwater
8. this is a vertical movement of water in which cold, deep seawater rises to the surface
9. the deepest zone of the oceans
12. causes not only a reduced population of some types of fish, can also be detrimental to other marine organisms
13. energy from moving water
17. porous, spongelike formation contains groundwater