Which method do scientists argue is most effective at reducing the amount of air and water pollution?
A. A shift to energy sources such as solar and windpower.
B. Attaching pollution control devices to smokestacks.
C. Injecting steam into the ground to remove groundwater contaminants.
D. Collecting runoff from construction sites before it enters a river.
Answer: A
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The dispersal of a population over a widespread area, even world-wide, is called a __________________.
Fill in the blank(s) with the appropriate word(s).
An earthquake of Richter magnitude 5 releases 32 times more energy than an earthquake of magnitude 4.
Answer the following statement true (T) or false (F)
Which of the following is the correct order of the layers of the atmosphere from the ground up?
A. troposphere, stratosphere, mesosphere, thermosphere B. stratosphere, troposphere, mesosphere, thermosphere C. stratosphere, mesosphere, troposphere, thermosphere D. thermosphere, troposphere, stratosphere, mesosphere
If the maximum sustainable yield of a renewable resource is exceeded, it can be considered to have become a nonrenewable resource.
Answer the following statement true (T) or false (F)