Costa Rica is considered a superpower of biodiversity, with an estimated 500,000 plant and animal species. This biodiversity is chiefly a result of the ____.
A. country's small size
B. country's geographic location and its government's strong conservation efforts
C. lack of deforestation throughout the country's history
D. careful use of natural resources by its indigenous people throughout its history
E. government subsidies for the conversion of forestland to rangeland
Answer: B
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Define "slope" and "aspect" as measures of the land surface.
What will be an ideal response?
Agriculture originated when ________
A) humans domesticated plants and animals for their use B) people decided that hunting was too difficult C) people came together to divide the earth into farming plots D) kings forced their subjects to stay in towns and villages E) when wives forced their husbands to get into the field and get food
Clouds typically develop because ____
a. the temperature of a parcel of air increases b. a parcel of air rises and cools c. water vapor is added to a parcel of air d. a parcel of air descends e. condensation nuclei are added to a parcel of air
If you live on the east coast of Florida or the Gulf Coast, why might you hope for an El Niño year?
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