Question : Which among the following is a greenhouse gas?
I. Methane
II. Carbon dioxide
III. Nitrogen dioxide
Option 1: I and II
Option 2: I and III
Option 3: II and III
Option 4: All the above
Correct Answer: I and II
Solution : The correct option is I and II .
Carbon dioxide, methane, nitrous oxide, hydrochlorofluorocarbons (HCFCs) and ozone in the lower atmosphere are the main greenhouse gases. The most significant greenhouse gas released by human activity is carbon dioxide (CO 2 ).
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Question : Cooking gas is a mixture of:
Question : Which among the following gases is also known as ‘Laughing Gas’?
Question : Which of the following is an air pollutant?
I Water vapour
II Carbon dioxide
III Hydrogen Gas
Question : Which among the following is used in fire extinguishers?
I. carbon dioxide
II. oxygen
III. sulphur dioxide
Question : Which of the following is odourless, tasteless, and non-toxic and is made up of 93.05% methane, nitrogen, carbon dioxide, propane, and traces of ethane?
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