— CHAPTER MASTERY · CLASS 12

Environmental Issues Important Questions.

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Key Concepts in Environmental Issues

Air pollution: sources (automobiles, industries), effects, catalytic converters, CNGGlobal warming: greenhouse gases (CO₂, CH₄, N₂O, CFCs); climate change consequencesOzone depletion: CFCs mechanism; Montreal ProtocolWater pollution: domestic sewage, industrial effluents, eutrophication; water conservationSolid waste management: e-waste, radioactive waste; Integrated Solid Waste Management

Practice questions covering all these NCERT topics — with AI explanations for each concept.

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