Motor vehicle emissions are not a major source of air pollution.
Answer the following statement true (T) or false (F)
False
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Crude death rates refer to the annual ratio of
A) deaths to every 1000 live births. B) deaths to every 1000 people. C) accidental deaths to deaths from natural causes. D) deaths from preventable diseases to deaths from natural causes. E) deaths to births.
Which of the following describes the scattering effect of oxygen and nitrogen on light?
A. Oxygen and nitrogen scatter entirely different wavelengths. B. They are selective scatterers. C. They scatter all wavelengths of light equally. D. Unlike other atmospheric gases, they don't scatter any wavelengths of light.
Groundwater recharge occurs every time it rains.
Answer the following statement true (T) or false (F)
Smaller planets like Mercury that have large surface-area-to-volume ratios cool relatively
A. slowly. B. quickly. C. moderately.