The most desirable method of dealing with hazardous wastes is ____.
A. incineration
B. conversion to less hazardous materials
C. perpetual storage
D. deposit in ocean trenches
E. recycling and reusing hazardous wastes
Answer: E
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The success of emissions trading programs in limiting pollution depends primarily on
A. the size of the initial cap only. B. how often the cap is lowered only. C. the size of the cap and how often it is lowered. D. the danger of the pollutant being limited. E. the participation of local airports.
In science, especially physics, an educated guess is called a
A. fact. B. theory. C. both a fact and a theory. D. none of the above
Judge the following sentence according to the criteria given below: Usually a parasite robs enough energy to kill the host BECAUSE if the host dies, the parasite can just swim away
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.
What is the temperature at which a flammable liquid will ignite without any external ignition source?
a. Lower explosive limit b. Ignition temperature c. Flash point d. Fire point