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Drainage — Social Studies STD 9 — Question

CBSE BoardEnglish MediumSTD 9Social StudiesDrainage5 Marks
Question
How do urbanisation and industrialisation cause river pollution? Suggest three measures to control river pollution.
OR
What are the main causes of the pollution in the rivers of India? How can we prevent this kind of pollution?
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Answer

  1. The main causes of pollution of Indian rivers are:
  1. The growing domestic, municipal, industrial and agricultural demand for water from rivers naturally affects the quality of water.
  2. As a result, more and more water is drained out of the rivers, thereby reducing their volume.
  3. A heavy load of untreated sewage and industrial effluents are emptied into the rivers.
  4. This affects not only the quality of water but also the self-cleansing capacity of the river.
  5. The increasing urbanisation and industrialisation has increased the pollution levels of the rivers.
  1. How to prevent pollution:
  1. The effluents of the industries should be treated before they enter the river waters.
  2. People of the urban areas living on the banks of the rivers should be sensitised about the pollution levels of the rivers and the difficulty in cleaning it.
  3. Since Indians are religious-minded and most of their festivals are associated with pure water of rivers, the immersing of deities, and of religious goods and even the dead are associated with these holy rivers, resulting into pollution, which needs to be checked and controlled.

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