November 2017
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Which pollutant is the major cause of respiratory disease? Suspended fine particles.
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In Urban areas, smog episodes occur frequently in winter. In winter, a lot of biomass is burnt by people for heating purpose or to keep themselves warm.
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Occurance of natural hazards is affected by: Land use change. Drainage and construction. Climate change.
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Which is not a product of both naturally and as a result of industrial activity? Chloroflurocarbon.
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Most environment friendly: Hydrogen
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