Environmental Studies ยท General Awareness
Greenhouse Gases and Atmosphere
1,328 Questions
Review important questions related to greenhouse gases, global warming, and atmospheric changes. The practice set focuses on identifying major pollutants and their environmental impact. These concepts are tested in the general awareness and environmental studies sections.
Greenhouse gas identificationGlobal warming processAtmospheric carbon dioxideMethane emissionsCement production emissions
Greenhouse Gases and Atmosphere Questions
What is the primary greenhouse gas emitted by transportation activities?
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Oxygen
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Nitrogen
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Carbon Dioxide
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Water Vapor
C
Correct answer
Explanation
Carbon dioxide (CO2) is the main greenhouse gas produced by transportation, primarily due to the burning of fossil fuels in vehicles.
Which of the following is NOT a greenhouse gas?
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Carbon dioxide
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Methane
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Nitrous oxide
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Oxygen
D
Correct answer
Explanation
Oxygen is not a greenhouse gas.
Which of the following is NOT a common VOC found in the atmosphere?
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Methane
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Ethane
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Propane
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Chlorofluorocarbons
D
Correct answer
Explanation
Chlorofluorocarbons are not common VOCs found in the atmosphere, unlike methane, ethane, and propane.
Which of the following greenhouse gases is primarily responsible for the climate impact of livestock production?
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Carbon dioxide (CO2)
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Methane (CH4)
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Nitrous oxide (N2O)
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Hydrofluorocarbons (HFCs)
B
Correct answer
Explanation
Methane is a potent greenhouse gas with a global warming potential 25 times that of carbon dioxide. It is produced by the enteric fermentation of feed in the digestive systems of ruminant animals, such as cattle, sheep, and goats.
Which of the following livestock species is responsible for the majority of methane emissions from livestock production?
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Cattle
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Pigs
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Sheep
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Poultry
A
Correct answer
Explanation
Cattle are responsible for the majority of methane emissions from livestock production due to their large size, their unique digestive system, and their high consumption of feed. Methane is produced as a byproduct of the fermentation of feed in the rumen, a specialized compartment of the cattle's digestive system.
Which of the following is NOT a greenhouse gas?
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Carbon dioxide
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Water vapor
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Oxygen
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Methane
C
Correct answer
Explanation
Oxygen is not a greenhouse gas because it does not trap heat in the atmosphere. Greenhouse gases, such as carbon dioxide, methane, and water vapor, absorb and emit radiation within the thermal infrared range, contributing to the greenhouse effect.
Which of the following gases is the primary contributor to the greenhouse effect?
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Carbon Dioxide (CO2)
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Oxygen (O2)
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Nitrogen (N2)
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Argon (Ar)
A
Correct answer
Explanation
Carbon Dioxide (CO2) is the primary greenhouse gas responsible for trapping heat in the Earth's atmosphere, leading to the greenhouse effect.
Which human activity is considered a major contributor to the increase in greenhouse gas emissions?
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Deforestation
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Industrialization
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Agriculture
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Transportation
B
Correct answer
Explanation
Industrialization, particularly the burning of fossil fuels for energy production, is a significant contributor to the increase in greenhouse gas emissions.
Which of the following is not a greenhouse gas?
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Carbon dioxide
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Methane
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Oxygen
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Nitrous oxide
C
Correct answer
Explanation
Oxygen is not a greenhouse gas, as it does not trap heat in the atmosphere like carbon dioxide, methane, and nitrous oxide.
What is the primary greenhouse gas responsible for the majority of global warming?
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Carbon Dioxide (CO2)
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Methane (CH4)
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Nitrous Oxide (N2O)
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Water Vapor (H2O)
A
Correct answer
Explanation
Carbon Dioxide (CO2) is the primary greenhouse gas responsible for the majority of global warming, contributing approximately 64% to the total greenhouse effect.
Which human activity is considered to be the main contributor to the increase in greenhouse gas emissions?
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Deforestation
-
Industrialization
-
Transportation
-
Agriculture
B
Correct answer
Explanation
Industrialization, particularly the burning of fossil fuels for energy production, is the main contributor to the increase in greenhouse gas emissions.
What is the primary greenhouse gas emitted by human activities?
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Carbon Dioxide (CO2)
-
Methane (CH4)
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Nitrous Oxide (N2O)
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Water Vapor (H2O)
A
Correct answer
Explanation
Carbon Dioxide (CO2) is the primary greenhouse gas emitted by human activities, primarily through the burning of fossil fuels.
Which sector contributes the largest share of global greenhouse gas emissions?
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Transportation
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Electricity and Heat Production
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Industry
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Agriculture, Forestry, and Other Land Use
B
Correct answer
Explanation
Electricity and Heat Production is the largest contributor to global greenhouse gas emissions, primarily due to the burning of fossil fuels for electricity generation.
What percentage of global greenhouse gas emissions can be attributed to waste management?
C
Correct answer
Explanation
Waste management activities, including waste collection, transportation, treatment, and disposal, contribute approximately 15% of global greenhouse gas emissions.
Which greenhouse gas is primarily responsible for the climate impact of waste management?
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Carbon dioxide (CO2)
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Methane (CH4)
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Nitrous oxide (N2O)
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Hydrofluorocarbons (HFCs)
B
Correct answer
Explanation
Methane (CH4) is the primary greenhouse gas emitted from waste management activities, particularly from the decomposition of organic waste in landfills and wastewater treatment plants.