Which of the following is not a cause for hunger?
A) calorie deficiency
B) protein deficiency
C) nutrient surplus
D) vitamin deficiency
Answer: C
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A slope material's strength and cohesion, the amount of internal friction between grains, and any external support of the slope define that slope's ____
A)mass wasting B)angle of repose C)dynamic equilibrium D)shear strength E)cohesive strength
Since the 1960s in the United States, public policies and high taxes on cigarettes to discourage smoking have
A) increased, and the number of adult smokers has been cut in half. B) increased, but the number of adult smokers has stayed about the same. C) increased, but the number of adult smokers has increased by about 50%. D) decreased, and the number of adult smokers has dropped by about 20%.
Which of the following best describes a floodplain?
A) an area that is incidentally flooded when farming or mining operations change the course of rivers B) an area that is periodically flooded because humans have altered the landscape C) a region of land that is periodically flooded when a river overflows D) a region of land that has been deliberately, permanently flooded due to human disturbance, such as in dam building E) an area where flood irrigation of crops is used, such as a rice paddy
The United States is withdrawing groundwater from aquifers at a rate that is, on average, ____.
A. equal to the rate that they are recharged B. four hundred times faster than they can be recharged C. four times faster than they can be recharged D. two times slower than the rate of recharge E. twenty times slower than the rate of recharge