2nd REVIEW

3. planting of timber on land right after being harvested
6. wildlife can do this much faster if just left alone
7. the Arab-Israeli war doubled the price of this after the Arab cut export ties with U.S.
8. of this
9. trees that are used to make paper
11. this is the most recycled element in the U.S.
15. organization started to halt the decrease in crude oil prices
17. invention of this made hard Great Plains land capable of being cultivated
19. land suitable for growing crops
20. the inference of; to hinder
22. to have a limited amount of something
23. the best way to conserve natural resources is
24. preservation techniques that are to minimize human interference with wildlife habitat

1. resources that can replenish by itself
2. some area are remote and get little moister so this is required to grow crops
4. the invention of the combustion engine in the late 1800s led to this
5. the removal of salt from water, to make it drinkable
7. what element was found in the Great American Desert
10. this event lead to soil conservations, also killed many people, wildlife, and plants
12. species of wild animals not considered game; raptors, rodent, and songbirds
13. slash and burn are done so fire ashes can do this to the ground
14. resources iron, cooper, lead, uranium or examplr
16. made it possible to pump water from much deeper depths
18. what is the worst of the two types of erosion
21. resources minerals found in nature that are used for humankind