Q. Tritium is used to trace spread of radioactivity in the

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Q. El Nino, largey influenced on global

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Q. Plantation, playing a major role in reducing rate of

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Q. In order to preferred way to assess quality, developing nations are located in

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Q. Earth's surface maintains a nearly constant temperature, approximately

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Q. Methane' absorbs infrared radiations, which affects

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Q. 'CFCs' absorbs solar ultraviolet radiation, which heats the

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Q. Photovoltaic cells are formed from

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Q. Carbon dioxide absorbs infrared radiation, affecting

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Q. Greenhouse gases, having less than 1 percent quantity of the

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Q. Industrial smog is also known as:

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Q. Developed nations are located in

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Q. Wind energy, working more actively on cloudy days and

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Q. How much fine particles are smaller?

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Q. Sustainable development, involved in needs of present without making a deal of

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Q. Geo engineering is a artificial modification of environment to counteract

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Q. 'CFCs' are chemically inert, non toxic and insoluble in

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Q. With passage of time, snow and ice melts faster in

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Q. Aerosols, usually found in the

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Q. 99% of air we breath is a mixture of nitrogen and

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