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Q.State any causes for environmental pollution.

Karnataka PUCKarnataka 1st PUC Commerce Board 2026Subjective· 2mImportance★★★★★
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Main causes of environmental pollution: industrial smoke and vehicle emissions, discharge of untreated waste and chemicals, and disposal of solid waste — leading to air, water, land and noise pollution.

Environmental pollution refers to the injection of harmful substances into the environment, damaging air, water and land. Its major causes include:

  • Air pollution – caused by smoke and gases emitted from factories, automobiles and the burning of fossil fuels.
  • Water pollution – caused by dumping untreated industrial effluents, chemicals and sewage into rivers, lakes and seas.
  • Land pollution – caused by improper disposal of solid waste, use of chemical fertilisers and pesticides. …

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