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RENEWABLE AND NONRENEWABLE RESOURCES

C2

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Across
1.an organism which is at risk of becoming extinct
4.To fill up again
5.To use, to eat
6.to decrease seriously or exhaust the abundance or supply of
10.is a form of irrigation that saves water and fertilizer by allowing water to drip slowly to the roots of many different plants, either onto the soil surface or directly onto the root zone, through a network of valves, pipes, tubing, and emitters
11.a fossil fuel used for energy which was formed, through heat and pressure, from the remains of ancient plants and animals
16.a material found in nature that is useful to humans
17.is the goal to reduce the amount of energy required to provide products and services
18.a liquid fossil fuel, also known as oil, formed from the remains of ancient plants and animals
19.the wise use of natural resources wisely in order to protect them
20.no longer in existence
Down
2.in danger of dying off or becoming extinct
3.Something that nature can replace or restore
7.a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
8.able to be maintained at a certain rate or level
9.tolerance to the degree to which a plant is adapted to arid or drought conditions
12.the act or result of cutting down or burning all the trees in an area
13.existing in finite quantity; not capable of being replenished
14.a fossil fuel used for energy which was formed from decomposed plant material
15.a liquid fossil fuel used for energy which was formed, through heat and pressure, from the remains of ancient plants and animals

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