Indiscriminate use of water by increasing population and industrial expansion has led degradation of the quality of water considerably. Surface water available from rivers, canals, lakes, etc. is never pure. It contains small quantities of suspended particles, organic and inorganic substances. When the concentration of these substances increases, the water becomes polluted and hence becomes unfit for use. In such a situation, the self-purifying capacity of water is unable to purify the water.

Which of the following place is the chief cause of pollution in the Yamuna river?

Delhi

Delhi is the chief cause of pollution in the Yamuna river as it dumps its domestic waste in the river.