The three crops that provide the majority of humanity's nutrients and calories are
A. cassava, corn, and rice.
B. corn, soybeans, and barley.
C. wheat, rice, and corn.
D. corn, beans, and potatoes.
Answer: C
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Current cultural geography sees the relationship between the environment and humans as interactive
Indicate whether this statement is true or false.
When corn is used to produce ethanol for fuel, the process also generates
A) proteins and cellulose. B) biodiesel and natural gas. C) livestock feed and corn oil. D) methane used to heat thousands of homes.
Natural gas is mainly consumed by ________
A) transportation B) agriculture C) industry D) nuclear power E) households
) What event is most responsible for raising safety issues related to offshore oil drilling?
A) the 1989 oil spill from the Exxon Valdez B) attacks from Iranian naval vessels on Persian Gulf oil rigs in the late 1980s C) persistent pipeline ruptures in the North Sea during the 1990s D) the 2004 evacuation of oil rigs due to Hurricane Katrina E) the 2009 BP oil platform blowout in the Gulf of Mexico