WATER POLLUTION (E.9AB)

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What is water pollution?

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Water pollution is the contamination of water bodies (like rivers, lakes, and oceans) due to harmful substances or pollutants, which can adversely affect aquatic life and human health.

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What are the main types of water pollutants?

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The main types of water pollutants include chemical pollutants (like pesticides and heavy metals), physical pollutants (like sediment and debris), and biological pollutants (like pathogens).

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What is nonpoint source pollution?

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Nonpoint source pollution refers to diffuse pollution that does not originate from a single identifiable source, making it difficult to control and manage.

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Why is nonpoint source pollution difficult to prevent?

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Because the source of nonpoint pollution is difficult to identify.

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What are pesticides and herbicides classified as?

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Pesticides and herbicides are classified as chemical pollutants.

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What type of pollution is caused by construction activities?

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Construction activities can cause physical pollution due to soil erosion and sediment runoff.

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What is thermal pollution?

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Thermal pollution is the degradation of water quality due to changes in water temperature, often caused by industrial discharges.

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How does thermal pollution affect aquatic life?

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When the temperature of water rises, the amount of dissolved oxygen decreases, which can lead to fish kills.

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How do human activities affect groundwater?

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Pollutants from industrial, agricultural, and residential activities can percolate through the soil and enter the groundwater, contaminating it.

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What is the impact of heavy metals in water?

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Heavy metals can be toxic to aquatic life and humans, leading to health issues and ecosystem damage.