The excessive turbidity, or cloudiness, of Lake Wingra in Madison, Wisconsin, was caused by the introduction of ____.
A. the Nile perch
B. marine seaweed
C. catfish
D. water lilies
E. the common carp
Answer: E
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The arrival of a cold front brings:
A) gentle rains. B) cumulonimbus clouds. C) mild weather. D) higher temperatures. E) stationary winds.
The majority of the United States lies within this wind belt
a. westerlies b. easterlies c. northerlies d. trades e. southerlies
Cis-trans isomers exist for which of the following molecules, all of which have the molecular formula C3H5Br?
A) 1-bromopropene B) 2-bromopropene C) 3-bromopropene D) none of these
The earth's radiation balance involves
A. most energy emitted directly into space with no interaction with the atmosphere. B. most energy leaving the earth in the form of longwave radiation. C. energy being radiated only upward into space. D. conduction and convection emitting energy directly into space.