Where do air masses form?
a. All of the above
b. flat land area
c. desert
d. forest
e. Ocean surface
a. All of the above
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Unlike gravitational forces, electric forces include
A. the inverse-square law. B. separation distance. C. infinite range. D. repulsive interactions.
Which school of economics warns that human economic systems could exceed the capacity of the environment to handle the pollutants and wastes we produce?
A. classical B. neoclassical C. capitalistic D. ecological E. socialistic
Based on your readings about population pyramids AND the Demographic Transition Model, which of the following nations is likely represented by this population pyramid?
A) Nigeria
B) Pakistan
C) Bangladesh
D) China
E) Germany
A large, steep-sided, circular hill of residual limestone bedrock is known as a ________
A) stalactite B) doline C) mogote D) sinkhole E) cavern