Clear sunny days with very cold nights would be associated with what type of air mass?
a. mP
b. mT
c. cP
d. cT
e. mA
ANSWER: c
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Most of the existing orders of mammals were present by the
a. Paleocene. d. Oligocene. b. Eocene. e. Miocene. c. Late Cretaceous.
Chemosynthetic communities are found associated with ________.
A. hydrothermal vents B. salt brine seeps C. oil and gas seeps D. All of these are correct. E. None of these is correct.
What change in U.S. law encouraged the expansion of credit?
A) higher taxation of income from investments B) elimination of income averaging for taxpayers C) elimination of an exemption for non-mortgage borrowing D) deregulation of the banking industry E) all of the above
The number of people served by advanced wastewater treatment plants doubled between 1968 and the mid-1990s, but because the treatment plants _______________________, the quantity of waste emitted into the water after treatment ___________________ .
A. became so much more effective; decreased by about one-third B. became so much less effective; increased by about one-third C. remained ineffective; remained the same D. moderately improved; increased by 10%