Pesticide resistance against one pesticide
A) is permanently restricted to that one kind of pesticide.
B) can become resistance to many if many pesticides are used.
C) can provide protection against herbivores.
D) often harms insects by decreasing their ability to reproduce.
B
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Above the rigid zone, glacial ice movement is due to ________.
A. opening of cracks or crevasses B. sliding along faults in the ice C. sliding along the base of the glacier D. passive riding of the ice on the glacier E. melting
Which of the following are characteristics of actively erupting volcanoes?
A) Glowing orange lava flowing downhill.
B) Fragments of molten rock blasting into the air.
C) Billowing clouds of ash rising into the air.
D) All of these are correct.
Meteorological conditions are important in air pollution episodes since they:
A) are important sources of pollutants. B) control the emission of pollutants. C) determine the location of sources. D) determine the amount of dilution.
In clouds with tops warmer than -15 degrees Celsius (5 degrees Fahrenheit), the ____ can play a significant role in producing precipitation.?
a. ?solute effect b. ?condensation c. ?curvature effect d. ?evaporation e. ?collision-coalescence process