Which of the following forms of air pollution is most directly linked to increased incidence of asthma and bronchitis?
a. Ozone
b. VOCs
c. Radon
d. SPMs
e. sulfur dioxide
D
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During ecological succession,
A. the activities of earlier waves of colonizers cause nutrients and organic matter to accumulate in a habitat, allowing later colonizers to thrive. B. biodiversity usually increases over time. C. the number of species found in the habitat usually remains constant. D. both A and B
Air masses are characterized by the ____________________ and moisture characteristics of their source regions
Fill in the blank(s) with correct word
____________________ landforms and processes are those associated with the work of the wind
Fill in the blank(s) with correct word
Thunder is caused by ________.
A. the compression of free photons in the lightning bolt B. high temperatures of lightning that flash heat the surrounding air, causing it to expand explosively C. the compression of free electrons in the lightning bolt D. the combustion of flammable atmospheric gases by the lightning bolt E. the compression of free neutrons in the lightning bolt