Atmosphere MCQs with Answers

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The most prevalent form of sulfur that enters the atmosphere is SO2 (sulfur dioxide).

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Chlorofluorocarbons damage the ozone layer most through the release of chlorine atoms, which catalytically destroy ozone molecules.

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Approximately 48% of the incoming solar flux (solar radiation) reaches the Earth's surface, while the rest is absorbed, reflected, or scattered by the atmosphere.

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The Earth is surrounded by a gaseous envelope called the atmosphere.

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Pollutant gases in the air combine together in the presence of sunlight and produce smog.

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The residence time of Nitric oxide (NO) in the atmosphere is few hours.

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In urban and industrial areas, air pollution is primarily higher due to emissions from vehicles, factories, and construction activities.

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Ozone is the gas in Earth's atmosphere that absorbs harmful solar ultraviolet (UV) radiation, protecting life on Earth.

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During electrical discharges in the atmosphere, nitrogen combines with oxygen to form nitric oxide (NO).

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The Ozone Layer restricts Ultraviolet Rays from reaching the Earth's surface.