Question

What is the main source of water pollution in India?
A.Discharge of untreated sewage
B.Bathing
C.Discharge of industrial waste
D.Both A and C

Answer 1

Hint: The contamination of water bodies, usually due to human activities is known as water pollution. It is a threatening hazard to human survival as the percentage of water fit for human consumption is very scarce.

Complete step by step answer:
Water pollution is the contamination of water bodies like rivers, lakes, oceans, groundwater, etc. usually as a result of human activities. It occurs when the contaminants are introduced in the natural environment. It also degrades the water quality making it toxic for humans and the environment. Water pollution is the leading worldwide cause of death and disease, e.g. due to water-borne diseases.
Water pollution is classified into two types: surface water pollution and groundwater pollution.
* Groundwater pollution: Groundwater is formed when rain falls and seeps into the earth. It is one of the least visible but most important natural resources. Groundwater gets polluted when contaminants—from pesticides and fertilizers to waste leachate from landfills and septic systems—make their way into an aquifer, rendering it unsafe for human use. Getting groundwater purified can be very difficult and costly.

* Surface water pollution: Surface water is what fills our oceans, lakes, rivers, and all those other blue bits on the world map.  Nutrient pollution, which includes nitrates and phosphates, is the leading type of contamination in these freshwater sources.
The main reasons for water pollution in India are industries and factories. They dump their industrial waste and untreated sewage into the water bodies, thus making it toxic for life on earth. Bathing is not a major source as it forms a minor portion of the major sewage waste.
Hence, the correct answer is (D).

Note: If unfit water is consumed by a human, it can lead to various water – borne diseases like: Typhoid, dysentery, jaundice, amoebiasis and malaria. It is a big hazard to human health.