On average, around how much municipal solid waste do Americans recycle?
a. three-fourths
b. two-thirds
c. one-half
d. one-third
e. one-fourth
Q. 2 -
Judge the following sentence according to the criteria given below: Composting can lead to a
significant reduction in a community's landfill needs BECAUSE yard wastes are second only
(percentage basis) to paper in urban solid waste.
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
Q. 3 -
Which of the following statements about leachate is false?
a. Leachate is also known as garbage juice with a moderately uniform composition.
b. Leachate should be considered dangerous to the environment until established otherwise.
c. Contaminant plumes of leachate can extend up to kilometers from their source.
d. The size and shape of leachate contaminant plumes are related to groundwater flow
velocity.
e. Leachates are classified based on the chemical reactivity and/or density of the leachate.
Q. 4 -
Dry cleaners, printers, gas stations, and septic tanks undergoing chemical cleaning are all considered
sources of what kind of contaminant?
a. sinking
b. soluble
c. floating
d. reactive
e. conservative
Q. 5 -
Which solution listed below has not been considered, at one time or another, for the handling of highlevel
nuclear waste?
a. Continue the present tank storage.
b. Put it into a convergent plate boundary
c. Put it in containers on the Arctic ice shelf
d. Put it into a salt mine or dome.
e. Put it is deep chambers in granite
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