The difference between point pollution and nonpoint pollution is that
A. point pollution has a clear source.
B. nonpoint pollution is water pollution, while point pollution is air pollution.
C. it is not possible to clean up point pollution.
D. none of the above
Answer: A
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The diagram below reminds us that NOx reacts with water to produce nitric acid (HNO3), an important component of
A) global warming.
B) El Niño.
C) eutrophication.
D) acid rain.
Where is Mount Everest located?
A) Bhutan B) Nepal C) Pakistan D) Afghanistan E) Bangladesh
When water condenses, it ________ heat energy and ________ the surrounding air
A) releases; cools B) releases; heats C) absorbs; cools D) absorbs heats
According to the polar front theory of a developing wave cyclone, the energy for a storm is usually derived from several sources. Which of the following is one of the sources of energy for a storm?
A. latent heat of condensation B. sinking of warm air C. heat energy stored in the ground D. a decrease in surface winds