Why are wilderness areas needed?
A) to preserve biological diversity
B) for the high number of recreational users
C) to improve sustainable timber production
D) to improve sustainable organic agriculture
Correct Answer:
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Q50: The negative effects of human activities on
Q51: How many national parks are in existence
Q52: Which zone is NOT a component of
Q53: What results from burning tropical forests?
A) increased biodiversity
B) more
Q54: The establishment of public lands by governments
Q56: What is the function of Ramsar sites
Q57: Public lands that comprise parks,zoos,national forests,seashores,etc.help sustain
Q58: More than 50% of Canada's plant and
Q59: How many biosphere reserves have been established
Q60: Within a biosphere reserve,where does little,if any,disturbance
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