Question

which gas is known as the greenhouse gas a) oxygen b) hydrogen c) methane d) nitrogen
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Answer 1

Answer:

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Explanation:

Carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and ozone (O3) are the greenhouse gases present in Earth's atmosphere.

Answer 2

Answer: a

Explanation: The fuel is burnt in the presence of oxygen to generate energy in the form of heat. This heat energy can be used for electrical power generation in steam power plants and for propelling ships, automobiles and locomotives, etc.