The pattern of intense, short duration grazing by wild ungulates (bison) is the origin of the idea of a. Clear cutting b. Rotational grazing c. Selective farming d. Prescribed prairie grass harvesting e. Controlled prairie reclamation The use of powerful chemical or physical methods to clean or repair severely damaged or barren areas is called: a. Remediation b. Intervention c. Reclamation d. Reallocation The tall grass prairies of the Great Plains primarily disappeared due to which factor? a. Widespread use of DDT which collapsed many food chains b. Reintroduction of large bison herds c. Establishing a railroad infrastructure d. Converting the plains to farmland Repairing ecological damage using living organisms while trying to do as little damage as possible is called . . . a. Reclamation b. Bioremediation c. Phytoremediation d. Habitat restoration e. Mitigation
Posted on: Thu, 26 Sep 2013 21:23:49 +0000
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