Atmosphere

41. Which of the following is not a consequence of air pollution?
a) Acid rain
b) Ozone depletion
c) Increased biodiversity
d) Smog

42. What is the name of the atmospheric layer above the troposphere where most commercial airplanes fly?
a) Stratosphere
b) Mesosphere
c) Thermosphere
d) Ionosphere

43. Which of the following is not a secondary air pollutant?
a) Ozone
b) Sulfuric acid
c) Nitric acid
d) Carbon dioxide

44. Which of the following is a common indoor air pollutant?
a) Carbon monoxide
b) Sulfur dioxide
c) Nitrogen dioxide
d) Ozone

45. Which of the following is not a measure of air pollution?
a) Parts per million
b) Parts per billion
c) Decibels
d) Micrograms per cubic meter