The main conclusion from this graph on soil and vegetation change after wetland restoration is ________
A) soil organic matter is initially the most rapid category to recover
B) plant biomass recovers relatively rapidly in restored wetlands
C) soils are more important to wetlands restoration than are plants
D) that it takes at least 10 years for wetlands restoration to be completed
E) soil organic matter and nutrient absorption are much easier to accomplish than improvements in biomass
B
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a. Photosynthesis b. food chains c. Chemosynthesis d. heterotrophic organisms e. food webs
Some pollutants are able to persist in the environment for thousands of years
a. True b. False
Plants have adapted to deserts by ____
A)growing in clumps B)growing rapidly C)growing deep tap roots D)having long dormant years E)developing soft stems and leaves
To be an artesian spring, a feature must:
a. contain salt water. b. flow above the local water table. c. lie below a cone of depression. d. flow for only part of the year. e. have been drilled or dug by people.