Which one of the following activities is responsible for the greatest threat to biodiversity?

A. Overharvesting by hunters and fishers.
B. The conversion of forests and prairies to farmland.
C. Killing of predators that kill domestic animals and other animals people value for food.
D. The spread of exotic species.


Answer: B

Environmental & Atmospheric Sciences

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In the state of Arizona, the use of groundwater has been aggressively managed since about 1980. Before that time, agricultural, commercial, and private demands for water were growing at levels that were not sustainable

Before water regulation of any type, demand for water in all its forms in the state of Arizona illustrated the A) need for limited access to commons. B) use of a nonrenewable resource. C) need for the preservation but not conservation of a resource. D) need for agreements such as CITES.

Environmental & Atmospheric Sciences

Which of the following is NOT evidence of global climate change?

A) disappearing rainforests B) rising sea level C) disappearing Arctic sea ice D) increasing atmospheric CO2 E) rising global average temperatures

Environmental & Atmospheric Sciences

All bottom-dwelling marine organisms that live on the seafloor or within seafloor sediments:a

anomalocarid d. chordate b. benthos e. ammonoid c. nekton

Environmental & Atmospheric Sciences

Most volcanoes are located in:

a. the Mediterranean belt. b. the mid-oceanic ridges. c. the circum-Pacific belt. d. the East African Rift Zone. e. Indonesia

Environmental & Atmospheric Sciences