Question

harmfull effect of water pollution​

Answer 1

$\mathbf \red{harmful \: effect \: }$

• Water of rivers and lakes polluted with fertilizers/insecticides can cause the death of aquatic animals like fish.
• Disturbance in ecological balance.
• Destruction of useful microorganisms.
• Drinking of water polluted with untreated sewage can cause diseases such as cholera, typhoid, etc.
• Effect of thermal pollution or change in temperature.