About 80% of the ocean's water exists in the ________
A) pycnocline
B) thermocline
C) surface zone
D) deep zone
E) euphotic zone
D
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The purpose of generating steam within a nuclear power plant reactor core is, like other energy producing systems, to
a. generate heat to heat buildings b. turn a turbine which generates electricity c. use the radioactivity to drive industrial processes d. create light that is transferred to factories and local industries e. Turbines are not part of nuclear reactor cores
The best way to avoid the evolution of pesticide resistance is to
A) use more of the pesticide anytime resistance appears. B) use crop rotation and biological controls instead of pesticides. C) develop new forms of pesticides. D) apply pesticides to the soil before planting and after harvesting a crop.
Why is acid rain an important atmospheric pollution concern to Canadians?
What will be an ideal response?
The geographer's concern with the Earth's interior is restricted primarily to its influence on ________
A) magnet fields B) magma intrusions C) foliation D) oxidation E) Earth surface features