There are serious signs that ozone depletion may lead to
A. Increased incidence of blindness
B. Depletion of plankton populations
C. Increased incidence of skin cancers
D. Reduced agricultural production
E. All of these
Answer: E
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Which of the following is involved in protecting the public from dangerous substances?
A. setting exposure limits to toxic and hazardous substances B. determination of acute and chronic toxicity of substances C. identification of toxic and hazardous substances D. All of these statements are correct.
The objective of ________ is to maximize beneficial use of the floodplain while minimizing flood damage and the cost of flood protection
Fill in the blank(s) with correct word
Which of the following does NOT physically loosen rocks on the surface?
A. joints that form when rock pressures are released B. rodents and other burrowing organisms C. water contracting as it freezes D. roots that pry apart fractures as the root grows in size E. crystals of salt and other minerals that exert an outward force on fractures
Today the ethnicity of Asian Americans ________.
A. has not changed proportionately since 1960 B. has become increasingly heterogeneous C. is significantly Chinese D. is homogeneous