Environmental Studies ยท General Awareness

Greenhouse Gases and Atmosphere

1,262 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

Multiple choice

Which of the following is NOT a major source of greenhouse gas emissions?

  1. Burning fossil fuels

  2. Deforestation

  3. Agriculture

  4. Solar energy
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Solar energy does not produce greenhouse gases when it is generated.

Multiple choice

Which of the following is NOT a major greenhouse gas?

  1. Carbon dioxide

  2. Methane

  3. Nitrous oxide

  4. Oxygen
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Oxygen is not a greenhouse gas.

Multiple choice

The greenhouse effect is caused by:

  1. Trapping of heat by greenhouse gases

  2. Reflection of heat by clouds

  3. Absorption of heat by the atmosphere

  4. Emission of heat by the Earth's surface
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The greenhouse effect is caused by the trapping of heat by greenhouse gases in the Earth's atmosphere.

Multiple choice

Which of the following pollutants is NOT a greenhouse gas?

  1. Carbon dioxide (CO2)

  2. Methane (CH4)

  3. Nitrogen oxides (NOx)

  4. Sulfur dioxide (SO2)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sulfur dioxide (SO2) is not a greenhouse gas, as it does not trap heat in the atmosphere.

Multiple choice

Which sector is considered a significant contributor to greenhouse gas emissions?

  1. Agriculture

  2. Manufacturing

  3. Transportation

  4. Services
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The transportation sector, particularly road transportation, is a major source of greenhouse gas emissions due to the burning of fossil fuels.

Multiple choice

Which greenhouse gas is primarily responsible for trapping heat in the Earth's atmosphere?

  1. A. Carbon dioxide (CO2)

  2. B. Methane (CH4)

  3. C. Nitrous oxide (N2O)

  4. D. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Carbon dioxide, methane, and nitrous oxide are the three main greenhouse gases that contribute to global warming by trapping heat in the atmosphere.

Multiple choice

Which of the following is NOT a greenhouse gas?

  1. Carbon dioxide

  2. Methane

  3. Water vapor

  4. Nitrogen
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nitrogen is not a greenhouse gas, as it does not absorb infrared radiation from the sun.

Multiple choice

Which of the following pollutants is a major contributor to climate change and can cause global warming?

  1. Carbon monoxide

  2. Nitrogen oxides

  3. Greenhouse gases

  4. Particulate matter
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Greenhouse gases, such as carbon dioxide, methane, and nitrous oxide, are major contributors to climate change and can cause global warming by trapping heat in the atmosphere.

Multiple choice

What is the primary greenhouse gas responsible for climate change?

  1. Carbon dioxide (CO2)

  2. Methane (CH4)

  3. Nitrous oxide (N2O)

  4. Water vapor (H2O)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon dioxide (CO2) is the primary greenhouse gas responsible for climate change. It is released into the atmosphere through human activities such as burning fossil fuels, deforestation, and industrial processes. CO2 traps heat in the atmosphere, leading to global warming and changes in climate patterns.

Multiple choice

What is the role of grasslands in carbon sequestration?

  1. Grasslands release carbon dioxide into the atmosphere

  2. Grasslands absorb carbon dioxide from the atmosphere

  3. Grasslands have no role in carbon sequestration

  4. Grasslands release methane into the atmosphere
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Grasslands play a vital role in carbon sequestration. They absorb carbon dioxide from the atmosphere through photosynthesis and store it in their biomass and soil. This helps to reduce the concentration of greenhouse gases in the atmosphere and mitigate climate change.

Multiple choice

What is the primary source of methane emissions from grasslands?

  1. Decomposition of organic matter

  2. Burning of fossil fuels

  3. Industrial processes

  4. Deforestation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The primary source of methane emissions from grasslands is the decomposition of organic matter, particularly plant material, by microorganisms in anaerobic conditions. Methane is a potent greenhouse gas that contributes to climate change.

Multiple choice

Which of the following is NOT a greenhouse gas emitted by agriculture?

  1. Carbon dioxide (CO2)

  2. Methane (CH4)

  3. Nitrous oxide (N2O)

  4. Oxygen (O2)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Oxygen is not a greenhouse gas, while carbon dioxide, methane, and nitrous oxide are all greenhouse gases emitted by agriculture.

Multiple choice

Which agricultural practice is the largest contributor to methane emissions?

  1. Livestock production

  2. Rice cultivation

  3. Fertilizer application

  4. Deforestation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Livestock production is the largest contributor to methane emissions, accounting for about 65% of total methane emissions from agriculture.

Multiple choice

What is the primary source of nitrous oxide emissions from agriculture?

  1. Livestock manure

  2. Synthetic fertilizers

  3. Crop residues

  4. Irrigation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Synthetic fertilizers are the primary source of nitrous oxide emissions from agriculture, accounting for about 70% of total nitrous oxide emissions from agriculture.

Multiple choice

What is the primary greenhouse gas emitted by human activities?

  1. Carbon dioxide

  2. Methane

  3. Nitrous oxide

  4. Hydrofluorocarbons
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon dioxide is the primary greenhouse gas emitted by human activities, accounting for approximately 65% of total greenhouse gas emissions.