Exam Questions and CORRECT Answers
From the following, pick the odd set of pollutants:
A ) CO, SO2, NOx
B ) CO, SO2, Ozone
C ) CO, NOx, Ozone
D ) SO2, NOx, Ozone - CORRECT ANSWER A ) CO, SO2, NOx
The pollutants that are emitted directly from a combustion process are called "primary
pollutants."
Which one of the following chemicals leads to the destruction of ozone?
A ) PHDs
B ) VOCs
C ) CFCs - CORRECT ANSWER C ) CFCs
CFCs lead to the destruction of ozone
Results of recent climate models suggest that projected greenhouse gas emission patterns may
lead to a global warming of 1.4 to 5.8 degrees Celsius during _____.
A ) The next 20 years
B ) The next five years
C ) The next 100 years - CORRECT ANSWER C ) The next 100 years
,Results of recent climate models suggest that projected greenhouse gas emission patterns may
lead to a global warming of 1.4 to 5.8 degrees Celsius during the next 100 years
NOx are primary pollutants.
A ) TRUE
B ) FALSE - CORRECT ANSWER A ) TRUE
The pollutants that are emitted directly from a combustion process are called "primary
pollutants."
VOCs (unburnt hydrocarbons) are secondary pollutants.
A ) TRUE
B ) FALSE - CORRECT ANSWER B ) FALSE
The pollutants that are emitted directly from a combustion process are called "primary
pollutants"
Nitrogen in the fuel when burned can form _____.
A ) NOx
B ) CO2
C ) SO2
D ) H2O - CORRECT ANSWER A ) NOx
,Sulfur turns into sulfur dioxide (SO2) and nitrogen into nitric oxide (NO) and nitrogen dioxide
(NO2)
Ground level ozone is produced directly by combustion.
A ) TRUE
B ) FALSE - CORRECT ANSWER B ) FALSE
Ozone is a secondary pollutant that forms from the primary pollutants such as Volatile Organic
Compounds (Hydrocarbons) and nitrogen oxides (NOx) in the presence of sunlight
PM2.5 describes the "fine" particles that are _____ 2.5 µm (micro meter) in diameter.
A ) larger than or equal to
B ) smaller than or equal to
C ) exactly equal to - CORRECT ANSWER B ) smaller than or equal to
PM2.5 describes the "fine" particles that are smaller than or equal to 2.5 µm (micro meter) in
diameter.
Ozone is good for the environment at _____.
A ) high altitude (about 10 km)
B ) any altitude
C ) low altitude ( about 10 m) - CORRECT ANSWER A ) high altitude (about 10 km)
, Stratospheric ozone is good for the environment. It blocks UV rays from entering earths
atmosphere.
Where is the bulk of Earth's ozone located?
A ) troposphere
B ) oceans
C ) ionosphere
D ) stratosphere - CORRECT ANSWER D ) stratosphere
Bulk of earth's ozone is located in stratosphere
Nitrous oxide (N2O) is a component of NOx.
A ) TRUE
B ) FALSE - CORRECT ANSWER B ) FALSE
Nitrogen into nitric oxide (NO) and nitrogen dioxide (NO2). Together they are called NOx.
Acid rain can damage your skin.
A ) TRUE
B ) FALSE
C ) only if you swim in an acidic lake - CORRECT ANSWER B ) FALSE