On a weather map, a line with blue triangles on one side and red semicircles on the other represents:
A) a cold front. B) a warm front. C) an occluded front. D) a stationary front.
Question 2
Meteorological conditions are important in air pollution episodes since they:
A) are important sources of pollutants. B) control the emission of pollutants.
C) determine the location of sources. D) determine the amount of dilution.