Question

state the reasons for this wonder of rivers flowing clean
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Answer 1

The reason for the wonder of rivers flowing clean is due to the lockdown that has been imposed across the nation and because of which it has had a positive impact on the environment

Explanation:

• Lockdown has performed wonderful things in water quality from Ganga to Cauvery, which for the first time in decades have become 'fit for consumption'. No manufacturing, no mining, no commercial activity implies no industrial discharge - all these had have led to rivers prevented from being polluted.
• While lockdown cannot be permanent, once lifted people must ensure that these rivers do not be polluted again. Steps must be taken by industries who are the major contributors of water pollution, to prevent water pollution