Which Central American country has established a system of reserves and national parks that, by 2008, has included about a quarter of its land, and is at the forefront of biodiversity conservation?
A. Nicaragua
B. Costa Rica
C. Panama
D. El Salvador
E. Honduras
Answer: B
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What determines the characteristics of ocean waves?
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Although many rangeland managers call for sharply reducing the number of grazing livestock to reduce overgrazing, Allen Savory recommends ____.
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