1.

On a week end, Shubham went on a picnic with this his parents. There was a beautiful view of a lake but suddenly, Shubham saw some fish floating on the surface of water of the lake as they had died. Shubham asked his parents why these fish had died. They told him that fish also need oxygen for their survival as we do. Dissolved oxygen in the water gets depleted due to discharge of human sewage and organic wastes of the industries into the lake water. After reading the above paragraph, answer the following questions: (a) What lesson do you learn from the explanation given by Shubham's parents to him?

Answer»

Solution :(a) We should not THROW HUMAN sewage and ORGANIC wastes of the INDUSTRIES into lakes.


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