Most sources of energy today are
A) fossil fuels.
B) wind powered.
C) based on coal and coal derivatives.
D) from the developed world.
E) renewable.
Answer: A
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When most of American alligator populations in Florida were eliminated, the populations of game fish like bass exploded.
Answer the following statement true (T) or false (F)
Which is the largest way that we are altering the carbon cycle?
A. Burning fossil fuels to make electricity. B. Making fertilizer out of atmospheric gases. C. Mining ocean sediments for phosphorus. D. Filling in natural wetlands.
Nomadic herding is least likely to occur in
A) Central America. B) the Middle East. C) Central Asia. D) North Africa.
From the perspective of which world region is Southwest Asian and North Africa considered the "Middle East"?
A) Europe B) Australia and Oceania C) East Asia D) Sub-Saharan Africa E) Latin America