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) permaculture techniques
B) integrated pest management
C) increased herbicide use
D) ethanol production
E) organic farming
Answer: D
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Which is not a chemical weathering process?
A. frost-shattering (-wedging) B. solution C. oxidation D. hydrolysis
____________________ is the term for molten rock material that lies beneath Earth's surface
Fill in the blank(s) with correct word
Finding and approving a site for safe disposal of high-level nuclear waste is the biggest deterrent to the
further development of nuclear energy in the U.S. Indicate whether the statement is true or false.
The greatest source of both nitrogen and phosphorus entering Chesapeake Bay is ________
A) urban fertilizer runoff B) agriculture C) municipal and industrial wastewater D) septic systems E) natural sources