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Which of the following is not a greenhouse gas?

  • a)
    Carbon dioxide

  • b)
    Oxygen

  • c)
    Methene

  • d)
    Nitrogen

Correct answer is option 'D'. Can you explain this answer?
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Which of the following is not a greenhouse gas?a)Carbon dioxideb)Oxyge...
A greenhouse gas is a gas that produces heat in the atmosphere as it increases. It also gets stuck in the environment and can not leave the internal layer of the Earth’s atmosphere. These gases introduce pollution because they contaminate the environment.
Examples for greenhouse gases: Carbon dioxides, Methane, Chlorofluorocarbon, sulfur dioxide.
Whereas oxygen, nitrogen, and argon are not examples of greenhouse gases.
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Which of the following is not a greenhouse gas?a)Carbon dioxideb)Oxyge...
Greenhouse gases
 (
GHG
) include 
carbon dioxide
, water vapor, methane, ozone, nitrous oxide and fluorinated 
gases
. These molecules in our atmosphere are 
called greenhouse gases
 because they absorb heat. ... Thus, 
greenhouse gases
 trap heat within the surface-troposphere system. This is 
called
 the 
greenhouse effect
.
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Which of the following is not a greenhouse gas?a)Carbon dioxideb)Oxyge...




Greenhouse Gas


Greenhouse gases are gases in the atmosphere that trap heat and contribute to the greenhouse effect, which warms the Earth. While some greenhouse gases are naturally occurring, human activities have significantly increased the concentrations of these gases in the atmosphere, leading to global warming and climate change.


Oxygen


Oxygen (O2) is not considered a greenhouse gas because it does not trap heat like other greenhouse gases. Oxygen is essential for life on Earth, but it does not contribute to the greenhouse effect.


Carbon Dioxide, Methane, and Nitrogen



  • Carbon dioxide (CO2): This is one of the most well-known greenhouse gases and is produced through activities such as burning fossil fuels, deforestation, and industrial processes.

  • Methane (CH4): Methane is a potent greenhouse gas that is released during activities such as livestock farming, rice cultivation, and natural gas production.

  • Nitrogen (N2): Nitrogen is a non-reactive gas that makes up about 78% of Earth's atmosphere. While it is not a greenhouse gas, nitrogen can indirectly contribute to the greenhouse effect through processes like nitrogen oxide emissions from human activities.



In summary, while oxygen is essential for life, it is not a greenhouse gas. Carbon dioxide, methane, and nitrogen are all greenhouse gases that contribute to global warming and climate change.



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NCERT TEXTBOOK QUESTIONS SOLVED Q. 1. What are the different ways in which water gets contaminated?Ans. Water gets contaminated in the following ways:(i) Many industries discharge harmful chemicals to rivers and streams.(ii) Water gets contaminated when sewage is disposed off in rivers.(iii) Pesticides, weedicides and other chemicals also dissolve in water and get contaminated.(iv) Breeding of microorganisms makes water polluted. Q. 2. At an individual level, how can you help reduce air pollution?Ans. By this process we can reduce air pollution:(i) We should plant trees to reduce the level of carbon dioxide and air pollution.(ii) By using CNG and unleaded petrol in our vehicle.(iii) By using public transport as far as possible.(iv) By giving general awareness about air pollution to our family and friends. Q . 3. Clear, transparent water is always fit for drinking. Comment.Ans. Clear, transparent water is always fit for drinking. This is not true, because many microorganisms are present in it. So we should clean it by boiling. Q. 4. You are a member of the municipal body of your town. Make a list of measures that would help your town to ensure the supply of clean water to all its residents.Ans. A list of measures that would help our town to ensure the supply of clean water to all its residents–(i) Proper cleaning of water tank.(ii) Chlorine tablets should be made available.(iii) To get clean water in every household, it is necessary that water reaching the houses should be treated. Q. 5. Explain the differences between pure air and polluted air.Ans. Pure air is free from germs and harmful gases. It contains 78% nitrogen, 21% oxygen and small amount of other gases and dust particles.Polluted air contains harmful gases and unwanted substances. Q. 6. Explain circumstances leading to acid rain. How does acid rain affect us?Ans. Some pollutants like sulphur dioxide and nitrogen dioxide react with the water vapour present in the atmosphere to form sulphuric acid and nitric acid. The acid drops down with rain, making the rain acidic. This is called acid rain. Acid rain affects us in many ways.(i) Acid rain corrodes the marble of the monument.(ii) Acid rain damages building and sculptural materials.(iii) Acid rain damages fresh water also.(iv) Acid rain also damages our crops and makes it poisonous.(v) Acid rain damages the leaves of plants. Q. 7. Which of the following is not a greenhouse gas?(

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Which of the following is not a greenhouse gas?a)Carbon dioxideb)Oxygenc)Methened)NitrogenCorrect answer is option 'D'. Can you explain this answer?
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