Question

Which of the following pairs of gases is mainly responsible for green house effect?

• A. Carbon dioxide and Methane
• B. Ozone and Ammonia
• C. Oxygen and Nitrogen
• D. Nitrogen and Sulphur dioxide

Answer 1

The correct option is A

Carbon dioxide and Methane

The correct option is A.
Explanation of the correct option:

1. The greenhouse effect is a phenomenon that happens when heat from a planet's host star passes through its atmosphere and heats the planet's surface but is prevented from radiating back into space by the atmosphere, making the planet warmer.
2. The way that "greenhouse gases" trap heat near the Earth's surface is known as the greenhouse effect.
3. We might imagine these heat-trapping gases as a blanket covering the Earth, keeping it warmer than it would be otherwise.
4. Ozone molecules are destroyed when chlorine and bromine atoms come into touch with them in the stratosphere.
5. Before it is eliminated from the stratosphere, one chlorine atom can destroy more than 100,000 ozone molecules.
6. More quickly than it is produced naturally, ozone can be destroyed.
7. Carbon dioxide, methane, nitrous oxide, hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs), and ozone in the lower atmosphere are the principal greenhouse gases whose concentrations are rising.
8. The main greenhouse effect components are carbon dioxide and methane.
9. The greenhouse effect is made up of 56.4% carbon dioxide and 16.3% methane, respectively.
10. The greenhouse impact is caused by ozone 10%, nitrous oxide 5.4%, and halocarbons 11.6%.
    

Explanation of the incorrect options:
Option B:

1. Although theoretically a greenhouse gas, ozone can either be beneficial or harmful depending on where in the earth's atmosphere it is found.
2. 10% of ozone's greenhouse effect is due to it.
3. The other category of gaseous emissions from agriculture is ammonia (NH₃).
4. Although they are not greenhouse gases, they have a detrimental effect on animal and human health and harm ecosystems.

Option C:

1. Because they are transparent to infrared light, oxygen and nitrogen are not considered greenhouse gases.
2. Since stretching one of these molecules has no effect on the electric field, they remain invisible.
3. These molecules are symmetric, consisting of two identical atoms whose electric fields simply cancel one another out.

Option D:

1. Nitrogen is not a greenhouse gas because it is transparent to infrared radiation.
2. Due to the fact that sulfur dioxide does not collect and trap infrared radiation as it tries to return to space, sulfur dioxide is not regarded as a direct greenhouse gas.
3. Direct greenhouse gases are the chemicals that cause this.
   

Final answer: Carbon dioxide and Methane gases are mainly responsible for the greenhouse effect.