(i) Industrial chemicals being disposed into water bodies like rivers, lakes and oceans.
(ii) Discharging untreated /raw sewage into water bodies.
(iii) Leaching of insecticides/herbicides form agricultural activities into water bodies.
(iv) Discharging non-biodegradable detergents after domestic and industrial use into water bodies.
(v) Petroleum oil spilling by ships and oil refineries
(vi)Toxic/poisonous gases from industries dissolving in rain .
(vii) Acidic gases from industries dissolving in rain to form “acid rain”
(viii) Discharging hot water into water bodies. This reduces the quantity of dissolved Oxygen in the water killing the aquatic fauna and flora.
Water pollution can be reduced by:
(i) Reducing the use of agricultural fertilizers and chemicals in agricultural activities.
(ii) Use of biological control method instead of insecticides and herbicides
(iii) Using biodegradable detergents
Building & maintaining an elearning portal is very expensive, that is why you see other elearning websites charge some fees. Help to keep this learning portal free by telling mum or dad to donate to help you and others to continue to use this portal. Thank you so much. Click here to donate