Electronic waste (computers, cell phones, etc.)
A. can be safely placed in landfills because they do not contain harmful or toxic components.
B. is generally taken back by manufacturers who recycle the components.
C. contains valuable metals
D. None of these statements is correct.
Answer: C
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Derecho winds are strongest when
A) upper-level winds are strong, because it spreads out the downdrafts. B) upper-level winds are strong, because their momentum is carried to the surface. C) upper-level winds are weak, because more wind shear is created. D) upper-level winds are weak, because less wind shear is created.
The world's largest city in 2013 was:
A) New York City B) Mexico City C) Tokyo D) Shanghai
Kazakhstan's areas of densest population are found:
A) in the central region B) in the west C) near the northern and southern borders D) along the shores of Lake Balkash
In the Northern hemisphere, a south-facing slope receives a great deal more sunlight than does a north-facing slope.
a. true b. false