EGEE 102 Exam 2 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Global warming occurs when _____.
A ) the heat budget is balanced.
B ) the total energy arriving at the earth is more than the energy leaving.
C ) infrared light energy is given off by the earth
D ) the total energy leaving the earth is greater than the energy arriving. - CORRECT
ANSWER B ) the total energy arriving at the earth is more than the energy leaving.
Global warming occurs when the total energy arriving at the earth is more than the energy
leaving
A water solution with a pH of 10 is _____.
A ) Basic
B ) Acidic
C ) Neutral - CORRECT ANSWER A ) Basic
The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is
neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic
The atmospheric temperature and CO2 concentration changed prior to the pre-industrial periods.
A ) TRUE
B ) FALSE - CORRECT ANSWER A ) TRUE
,The ice core samples indicated that the atmospheric concentration of CO2 and temperatures
fluctuated in the past significantly.
The ozone hole has _____.
A ) lower than 220 Dobson units of ozone concentration
B ) Higher than 220 Dobson units of ozone concentration
C ) no ozone between space and the earth's surface
D ) higher concentration of CFCs in the stratosphere - CORRECT ANSWER A ) lower than
220 Dobson units of ozone concentration
Ozone hole has lower than 220 dobson units of ozone concentration
Once destroyed, stratospheric ozone cannot be re-formed.
A ) TRUE
B ) FALSE - CORRECT ANSWER B ) FALSE
Ozone is constantly produced and destroyed in a natural cycle. However, the overall amount of
ozone is essentially stable. This balance can be thought of as a stream's depth at a particular
location
Which gases contribute to ozone formation at the ground level?
A ) Carbon monoxide
,B ) Carbon dioxide
C ) Particulate matter
D ) Sulfur dioxide
E ) Nitrogen Oxides - CORRECT ANSWER E ) Nitrogen Oxides
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
The primary source for nitrogen oxide emissions in the US is motor vehicles
A ) TRUE
B ) FALSE - CORRECT ANSWER A ) TRUE
The primary sources of NOx are motor vehicles, electric utilities, and other industrial,
commercial, and residential sources that burn fuels
Without the greenhouse effect, Earth would be uninhabitable.
A ) TRUE
B ) FALSE - CORRECT ANSWER A ) TRUE
If there were no greenhouse gases in the atmosphere, the radiation received during the day time
would be escaping in the night and the Earth would be at an average temperature (including
summer, winter, night and day, and all latitudes) of 0 degrees F.
One of the ways to reduce greenhouse gases is to use energy efficent appliances.
, A ) TRUE
B ) FALSE - CORRECT ANSWER A ) TRUE
Energy efficient appliances help to reduce greenhouse gases
Most acid rain in the north eastern states of United States has a pH of
A ) 8.2
B ) 7.1
C ) 3.4
D ) 4.2 - CORRECT ANSWER D ) 4.2
Northeast parts of United States has the most acidic rain with pH as low as 4.2
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
The greenhouse effect is a man-made phenomenon.
Exam Questions and CORRECT Answers
Global warming occurs when _____.
A ) the heat budget is balanced.
B ) the total energy arriving at the earth is more than the energy leaving.
C ) infrared light energy is given off by the earth
D ) the total energy leaving the earth is greater than the energy arriving. - CORRECT
ANSWER B ) the total energy arriving at the earth is more than the energy leaving.
Global warming occurs when the total energy arriving at the earth is more than the energy
leaving
A water solution with a pH of 10 is _____.
A ) Basic
B ) Acidic
C ) Neutral - CORRECT ANSWER A ) Basic
The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is
neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic
The atmospheric temperature and CO2 concentration changed prior to the pre-industrial periods.
A ) TRUE
B ) FALSE - CORRECT ANSWER A ) TRUE
,The ice core samples indicated that the atmospheric concentration of CO2 and temperatures
fluctuated in the past significantly.
The ozone hole has _____.
A ) lower than 220 Dobson units of ozone concentration
B ) Higher than 220 Dobson units of ozone concentration
C ) no ozone between space and the earth's surface
D ) higher concentration of CFCs in the stratosphere - CORRECT ANSWER A ) lower than
220 Dobson units of ozone concentration
Ozone hole has lower than 220 dobson units of ozone concentration
Once destroyed, stratospheric ozone cannot be re-formed.
A ) TRUE
B ) FALSE - CORRECT ANSWER B ) FALSE
Ozone is constantly produced and destroyed in a natural cycle. However, the overall amount of
ozone is essentially stable. This balance can be thought of as a stream's depth at a particular
location
Which gases contribute to ozone formation at the ground level?
A ) Carbon monoxide
,B ) Carbon dioxide
C ) Particulate matter
D ) Sulfur dioxide
E ) Nitrogen Oxides - CORRECT ANSWER E ) Nitrogen Oxides
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
The primary source for nitrogen oxide emissions in the US is motor vehicles
A ) TRUE
B ) FALSE - CORRECT ANSWER A ) TRUE
The primary sources of NOx are motor vehicles, electric utilities, and other industrial,
commercial, and residential sources that burn fuels
Without the greenhouse effect, Earth would be uninhabitable.
A ) TRUE
B ) FALSE - CORRECT ANSWER A ) TRUE
If there were no greenhouse gases in the atmosphere, the radiation received during the day time
would be escaping in the night and the Earth would be at an average temperature (including
summer, winter, night and day, and all latitudes) of 0 degrees F.
One of the ways to reduce greenhouse gases is to use energy efficent appliances.
, A ) TRUE
B ) FALSE - CORRECT ANSWER A ) TRUE
Energy efficient appliances help to reduce greenhouse gases
Most acid rain in the north eastern states of United States has a pH of
A ) 8.2
B ) 7.1
C ) 3.4
D ) 4.2 - CORRECT ANSWER D ) 4.2
Northeast parts of United States has the most acidic rain with pH as low as 4.2
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
The greenhouse effect is a man-made phenomenon.
