People around the world have become more dependent on global markets for their food. As a result, recent U.S. government policies encouraging ________ have had a major negative effect on food availability
A) organic farming
B) permaculture techniques
C) ethanol production
D) integrated pest management
E) increased herbicide use
C
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Which process could theoretically provide a limitless source of intense heat and electricity, but still needs further research?
A. nuclear fission B. nuclear charging C. fracking D. solar panels E. nuclear fusion
A transverse current is a ____
A) bottom current flowing in the same direction as an overlying surface current B) surface current that connects eastern-boundary and western-boundary currents C) cold surface current that flows from the poles toward the equator D) theoretical current not yet discovered
Survival activities and leisure activities both fall under the definition of
A) material culture. B) folk culture. C) popular culture. D) the arts and recreation. E) the physical environment.
Two third-order streams must join to form a second-order stream
a. True b. False Indicate whether the statement is true or false