"Closed canopy" forests are those in which tree crowns

A. Cover about 20 percent of the ground surface
B. Include all sizes of trees
C. Cover most of the ground
D. Cover less than 10 percent of the ground surface
E. Crowd out smaller vegetation


Answer: C

Environmental & Atmospheric Sciences

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It is most economically and environmentally sound to focus water resource management on

a. increasing the water supply b. controlling the "mining" of groundwater c. reducing unnecessary waste of water d. developing desalination plants e. cloud seeding and towing icebergs to arid regions

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Which of the following is TRUE regarding the colonization of Southeast Asia?

A) This was the first area of the world that Europeans colonized. B) Slaves were a major export of the region. C) Thailand was easily colonized. D) Only the coastal areas were colonized. E) It was colonized by a variety of European powers.

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Which process releases latent heat?

A. Melting of ice B. Condensation C. Evaporation

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Numerous bridges span the Amazon River in order to facilitate transportation

a. true b. false

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