A rainbow in the morning signifies weather approaching because:
A) a rainbow forms during the mature phase of a thunderstorm.
B) you must have the sun between you and the storm to see a rainbow.
C) weather moves from west to east, and you must be between the rising sun and the rain to see the rainbow.
D) a rainbow only occurs when air is very unstable.
C
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General Circulation Models (GCM)
A) use data collected exclusively from high-resolution satellites. B) use spectral models derived from energy released from the earth and clouds. C) can be run on powerful home computers, allowing citizen scientists to run models. D) use complicated two-dimensional grid systems that change temporally.
A group behavior that is much more common in bony fish than cartilaginous fish is ________.
A. migration B. schooling C. homing D. territoriality
The refraction of waves tends to concentrate wave energy ________ and disperse energy ________.
A. along coasts; behind breakwaters B. along coasts; in bays C. in bays; on headlands D. along coasts; on headlands E. on headlands; in bays
Managing crop competitors and pests have been challenging to agronomists for centuries. One approach, integrated pest management, ________
A) uses only pheromones B) uses only chemical pesticides C) combines a variety of pesticides to combat the pest D) combines chemical pesticides with biological control techniques E) uses no pesticides of any kind