Environmental Studies · 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

Multiple choice

Which of the following is/are true?

  1. The increase in percentage of carbon monoxide in air causes global warming.

  2. The increase in percentage of carbon dioxide in air causes global warming.

  3. The increase in percentage of methane in air causes global warming.

  4. Both (2) and (3).
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The increase in percentage of CO2 and methane causes global warming and raises the temperature of the earth.

Multiple choice

Greenhouse effect is mainly caused by which of the following?

  1. CFCs

  2. CH4

  3. CO2

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

A greenhouse gas is a gas in the atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The main greenhouse gas is carbon dioxide.

Multiple choice

Which of the following statements is correct?

  1. Carbon dioxide allows the Earth to radiate heat rapidly at night.

  2. Percentage of carbon dioxide in air varies form 0.03% to 0.04%.

  3. Radon is not a cancer causing radioactive gas.

  4. A combustible substance combines with nitrogen to liberate heat energy.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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Multiple choice

Which of the following is not a major greenhouse gas in the atmosphere?

  1. Carbon dioxide

  2. Ozone

  3. Water vapour

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

Ozone is not a major greenhouse gas in the atmosphere. The primary greenhouse gases in Earth's atmosphere are water vapour, carbon dioxide, methane and nitrous oxide. In the Solar System, the atmospheres of Venus, Mars and Titan also contain gases that cause greenhouse effect.

Multiple choice

Which of the following is not greenhouse gas in Earth’s atmosphere?

  1. N2

  2. Water vapour

  3. Nitrous oxide

  4. Carbon dioxide

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In order, the most abundant greenhouse gases in Earth's atmosphere are:

Water vapour (H2O) Carbon dioxide (CO2) Methane (CH4) Nitrous oxide (N2O) Ozone (O3) Nitrogen, oxygen and argon are non- green house gases.

Multiple choice

Global dimming, observed for several decades after 1950s, is thought to have been caused by

  1. Methane

  2. Particulate matter

  3. CFCs

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

Global dimming is the gradual reduction in the amount of global direct irradiance at the Earth's surface that was observed for several decades after the start of systematic measurements in the 1950s. Global dimming is thought to have been caused by an increase in particulates such as sulfate aerosols in the atmosphere due to human action.

Multiple choice

Greenhouse gases from the combustion of fossil fuels play a major role in

  1. Depleting natural resources

  2. Destroying animal habitats

  3. potential global warming and climate change

  4. Causing natural disasters
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Greenhouse gases, such as carbon dioxide released from burning fossil fuels, trap heat in the atmosphere, which is the primary driver of global warming and long-term climate change.

Multiple choice physics energy production

Which of the following is not a greenhouse gas?

  1. Carbon dioxide

  2. Sulphur dioxide

  3. Methane

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

Carbon dioxide, methane, and ozone are well-known greenhouse gases. Sulphur dioxide is primarily an air pollutant that causes acid rain, not a primary greenhouse gas.

Multiple choice physics heat and energy

Which of the following is not a greenhouse gas?

  1. $H _2O \ (vapour)$
  2. $CFCs$
  3. $N _2$
  4. $O _3$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the given options,other than nitrogen gas,rest all the gases has the capability of trapping the heat rays reflecting from the earth.(they trap the heat rays because they have certain properties which are either enhanced or reduced due to heat)