Discharge of sewage into a water body causes mortality of fish and other aquatic creatures. Why? Class 12 biology
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Human sewage is another source of water pollution. If untreated sewage gets into rivers, micro organisms decompose it. They use oxygen from the water for aerobic respiration. As a result there is less oxygen dissolved in water, so aquatic organisms such as fish and insects may be unable to survive.
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Human sewage is another source of water pollution. If untreated sewage gets into rivers, micro organisms decompose it. They use oxygen from the water for aerobic respiration. As a result there is less oxygen dissolved in water, so aquatic organisms such as fish and insects may be unable to survive.
.
.
HOPE THIS HELPS YOU
@CHOCOHOLIC15❤
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