On what basis are air masses classified?
What will be an ideal response?
Air masses are classified by their source region, the region that provides them with their characteristic temperature and moisture properties.
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According to the following reaction, which molecule is acting as an acid? H2O + NH3 ? OH- + NH4+
A. H2O B. NH3 C. OH- D. NH4+ E. none of the above
Which of the following describes what happens to atmospheric pressure at night, when the weather is cold and dry?
A. It remains constant with increasing altitude. B. It decreases with increasing altitude. C. It increases with increasing altitude. D. It first increases, then decreases with increasing altitude.
Haley's Comet visits Earth's atmosphere once every 76 years. What branch of the Earth sciences is the main group that studies these phenomena?
A) meteorology B) geology C) oceanography D) astronomy
The range of daily temperatures is __________ during cloudy conditions because
A) reduced; clouds reduce both the incoming shortwave radiation and the outgoing longwave radiation B) reduced; clouds reduce the incoming shortwave radiation and increase the outgoing longwave radiation C) enlarged; clouds reduce both the incoming shortwave radiation and the outgoing longwave radiation D) enlarged; clouds reduce the incoming shortwave radiation and increase the outgoing longwave radiation