Department of
Natural Sciences
Clayton College & State University
Morrow, Georgia
March 17, 2009
SCI 1901E - Quiz 11
Name __________SOLUTION_____________
(03) 1. The Earth’s atmosphere is composed primarily of
a. oxygen and carbon dioxide.
b. nitrogen and oxygen.
c. sulfur oxides.
d. inert gases such as argon.
a. occur when the temperature in the atmosphere decreases with increasing height.
b. are frequently produced naturally during daylight hours by radiative heating of the Earth.
c. are frequently produced naturally during night time hours by radiative cooling of the Earth.
d. normally dissipate under heavy fog conditions during the morning hours.
(03) 3. Define the term “pollutant.”
Pollutants are human produced substances that are toxic or irritant to animals, plants or the environment.
(06) 4. Match the phrase below that best describes one of the following pollutants:
CO: carbon monoxide
SOX: sulfur oxides
particulates
volatile organic compounds: VOCs
____particulates______ principal human sources are industrial smelters and electric power plants
_______VOCs_______ includes solvent vapors and gasoline vapor
_______CO_________ colorless, odorless, poisonous gas
_______SOX________ primary source is burning coal
_______CO_________ produced by incomplete combustion of carbon
_______CO_________ primary source is motor vehicles