Environmental Studies · 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

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)


Multiple choice physics heat and energy

Name of green house gases.

  1. methane

  2. oxygen

  3. nitrogen

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  1. Carbon dioxide 
    2. Methane 
    3. Nitrous oxide 
Multiple choice physics heat and energy

Which of the following greenhouse gas is not present in very high quantity?

  1. methane

  2. ethane

  3. propane
  4. $CO _2$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A greenhouse gas is a gas that absorbs and emits radiant energy within the thermal infrared range. Greenhouse gases cause the greenhouse effect on planets. The primary greenhouse gases in Earth's atmosphere are water vapour $(H _2O)$, carbon dioxide $(CO _2)$, methane $CH _4)$, nitrous oxide $(N _2O)$ and ozone $(O _3)$. Among the given gases, $CO _2$ is not present in very high quantity.

Multiple choice physics heat and energy

The extent that a greenhouse gas warms the Earth depends on:

  1. the length of time it remains in the atmosphere

  2. its ability to absorb energy

  3. both A and B

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Scientists use these factors to calculate a gass global warming potential, which measures how much heat it absorbs per pound.

Multiple choice physics heat and energy

Greenhouse gases keep the earth:

  1. Cool

  2. Warm

  3. No effect

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

Since greenhouse gases trap heat rays (infrared rays) which due to irradiation keeps the earth warm.

Multiple choice physics heat and energy

Greenhouse gases absorb:

  1. Ultraviolet radiations

  2. Visible light radiations

  3. Microwave radiations

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

They trap the heat rays because they have certain properties which are either enhanced or reduced due to heat.Capturing infrared rays is a characteristic properties of greenhouse gases.


Multiple choice physics heat and energy

After $CO _2$, which greenhouse gas accounts for the next largest share?

  1. Suphur dioxide

  2. Methane

  3. Nitrous Oxide

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

Methaneemitted from landfills, coal mines, oil/gas operations, and agricultural livestockaccounted for 10 percent of U.S. greenhouse gas emissions.

Multiple choice physics heat and energy

What greenhouse gas was not present in the atmosphere in pre-industrial times (before 1750)?

  1. Trichlorofluoromethane

  2. Carbon dioxide

  3. Nitrous oxide

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

Trichlorofluoromethane is a type of fluorocarbon. Fluorocarbons were not present in the atmosphere before 1750. Today trichlorofluoromethane is present in the atmosphere at 242 to 244 parts per trillion (ppt).

Multiple choice physics heat and energy

What is the largest source of U.S. greenhouse gas emissions?

  1. Agriculture

  2. Transportation

  3. Electricity Production

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

Electricity production accounted for 31 percent of U.S. greenhouse gas emissions in 2013, followed by transportation at 27 percent.

Multiple choice physics heat and energy

What can remove carbon dioxide from the atmosphere?

  1. Vegetation

  2. Oceans

  3. Carbon capture equipment

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

Vegetation and the oceans absorb somebut not all $CO _2$ emissions. Power plants can use carbon capture and sequestration technology to reduce emissions.

Multiple choice physics heat and energy

Which of the following is a greenhouse gas?

  1. Water vapour

  2. Methane

  3. Carbon dioxide

  4. All of the above

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

All the gases which has the properties that may be influenced by heat rays,has the capability to absorb infrared rays and hence act as greenhouse gases.