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Write four causes of environmental pollution.

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The four major causes of environmental pollution can be remembered as \textbf{I-A-W-D}: \textbf{I}ndustrial activities, \textbf{A}gricultural practices, \textbf{W}aste disposal issues, and \textbf{D}eforestation/vehicular emissions. Each contributes significantly to the degradation of our environment.
Updated On: Feb 25, 2026
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Solution and Explanation

Four Causes of Environmental Pollution:

Environmental pollution occurs when harmful substances contaminate air, water, and land, causing damage to living organisms and nature.

1. Industrial Emissions:
Factories release harmful gases, smoke, and chemicals into the air and water, leading to air and water pollution.

2. Vehicle Exhaust:
Smoke and harmful gases from cars, buses, and trucks increase air pollution.

3. Deforestation:
Cutting down trees disturbs the ecological balance and increases carbon dioxide levels in the atmosphere.

4. Improper Waste Disposal:
Throwing garbage, plastic, and industrial waste into rivers, land, or open areas causes land and water pollution.

Conclusion:
Industrial activities, vehicles, deforestation, and improper waste disposal are major causes of environmental pollution. Controlling these causes can help protect the environment.

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