Q. Lowest values of ozone, found under normal condition around the

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Q. During 1990 to 2000, 60% of deforestation occurred in

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Q. Short exposure to 'UV-B' radiations can cause the

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Q. In 1987, Montreal protocol was passed to reduce emissions of

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Q. Solar energy has greatest potential for providing clean and

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Q. Chlorofluorocarbons are non-toxic, non-flammable and

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Q. Ozone holes are first discovered in Antarctica in

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Q. Aerosols, absorbing and emitting

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Q. Acidic oxides such as sulphates and nitrates, cause corrosion of

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Q. Daisyworld model was developed by

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Q. Without greenhouse gases, earth would be too cold to

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Q. Particulate matters are also originated from

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Q. WEC is an international body with a broad membership of both energy users and

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Q. 'Photolysis' of Cl₂O₂ is playing an key role to

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Q. According to first Law of thermodynamics, physical or chemical energy is:

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Q. In hydrological cycle, process involved in exchanging of water between atmosphere and

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Q. Energy obtained by transfer of heat from deep down in earth's crust is known as:

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Q. Molecules can also be formed by a single element such as:

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Q. Ozone depletion is caused by human produced

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Q. Between 1928 and 1958, Dobson established a worldwide network of

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