Q. Methane is produced by human, through fossil fuel production and

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Q. CFCs contains fluorine, carbon and

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Q. Younger Dryas event is a Cold

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Q. Smog usually arise by combustion of

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Q. Sulphur dioxide' is produced in atmosphere by volcanic eruption,

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Q. Photochemical smog forms, when NOx and VOCs react in presence of

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Q. Range of electromagnetic energy emitted by sun is called:

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Q. Main problem of wave power plants is cyclone and

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Q. In 1990, IPCC publised its first assessment report on

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Q. According to estimates, rate of Antarctic ice melt to double by 2050

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Q. Deforestation can also accur naturally, such as

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Q. Ozone has a strong odour at:

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Q. Airplanes travel in the

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Q. 'GHGs levels are determined by

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Q. Young Dryas marked by spread of an Arctic flower

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Q. Over last 100 years, average temperature around world has risen about

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Q. Tropical cyclones are also known as: hurricanes and

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Q. Atmosphere is a blanket of

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Q. Ppm' stands for

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Q. Thermosphere is hottest layer of

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