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
Which of the following is NOT a greenhouse gas?
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Carbon dioxide
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Methane
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Water vapor
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Oxygen
D
Correct answer
Explanation
Oxygen is not a greenhouse gas, as it does not trap heat in the atmosphere.
What is the most abundant gas in the Earth's atmosphere?
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Nitrogen
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Oxygen
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Carbon Dioxide
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Argon
A
Correct answer
Explanation
Nitrogen makes up approximately 78% of the Earth's atmosphere.
What is the second most abundant gas in the Earth's atmosphere?
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Oxygen
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Carbon Dioxide
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Argon
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Water Vapor
A
Correct answer
Explanation
Oxygen makes up approximately 21% of the Earth's atmosphere.
What is the third most abundant gas in the Earth's atmosphere?
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Carbon Dioxide
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Argon
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Water Vapor
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Methane
B
Correct answer
Explanation
Argon makes up approximately 0.93% of the Earth's atmosphere.
What are the main greenhouse gases in the Earth's atmosphere?
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Carbon Dioxide
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Methane
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Nitrous Oxide
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All of the above
D
Correct answer
Explanation
The main greenhouse gases in the Earth's atmosphere are carbon dioxide, methane, and nitrous oxide.
What is the impact of human activities on the composition of the Earth's atmosphere?
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Human activities have increased the concentration of greenhouse gases in the atmosphere
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Human activities have decreased the concentration of greenhouse gases in the atmosphere
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Human activities have had no impact on the concentration of greenhouse gases in the atmosphere
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None of the above
A
Correct answer
Explanation
Human activities, such as the burning of fossil fuels, have increased the concentration of greenhouse gases in the atmosphere, leading to global warming and climate change.
Which of the following is NOT a greenhouse gas?
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Carbon dioxide (CO2)
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Methane (CH4)
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Water vapor (H2O)
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Oxygen (O2)
D
Correct answer
Explanation
Oxygen is not a greenhouse gas. Greenhouse gases are gases that trap heat in the atmosphere, causing the Earth's temperature to rise. Water vapor is a greenhouse gas, but it is a natural component of the atmosphere and does not contribute to climate change in the same way that human-produced greenhouse gases do.
Which greenhouse gas is primarily responsible for the enhanced greenhouse effect and 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 main greenhouse gas contributing to the enhanced greenhouse effect and subsequent global warming.
What is the primary greenhouse gas in the Earth's atmosphere?
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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 is the primary greenhouse gas in the Earth's atmosphere, accounting for approximately 60% of the greenhouse effect.
Which of the following is NOT a major component of the atmosphere?
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Nitrogen
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Oxygen
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Carbon dioxide
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Argon
C
Correct answer
Explanation
Carbon dioxide is a minor component of the atmosphere, making up only about 0.04% of its volume.
What is the primary greenhouse gas emitted by public transportation vehicles?
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Carbon dioxide
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Methane
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Nitrous oxide
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Hydrofluorocarbons
A
Correct answer
Explanation
Public transportation vehicles, particularly those powered by fossil fuels, emit carbon dioxide as a primary greenhouse gas, contributing to climate change.
Which greenhouse gas is primarily responsible for human-induced climate change?
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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 human-induced climate change, contributing approximately 64% of the total greenhouse effect.
Which sector is the largest contributor to global greenhouse gas emissions?
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Transportation
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Industry
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Agriculture
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Residential and Commercial Buildings
A
Correct answer
Explanation
Transportation is the largest contributor to global greenhouse gas emissions, accounting for approximately 24% of total emissions.
Which greenhouse gas has the highest global warming potential?
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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)
B
Correct answer
Explanation
Methane (CH4) has a global warming potential 25 times higher than carbon dioxide (CO2) over a 100-year period.
What is the primary greenhouse gas emitted by human activities?
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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 emitted by human activities, primarily through the burning of fossil fuels for energy production and transportation.