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Question

A pond contains clean water. Which of the following activities will produce the least pollution of water?


A

washing clothes in the pond

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B

animals bathing in the pond

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C

washing motor vehicles in the pond

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D

swimming in the pond

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Solution

The correct option is D

swimming in the pond


The correct option is D.

Explanation of correct option:

  1. The contamination of water sources by the components that make the water unsuitable for cleaning, cooking, drinking, swimming, and other activities is water pollution.
  2. Some of the causes of water pollution are improper sewage disposal, oil spills, chemical waste dumping, etc.
  3. Swimming in the pond will generate the least water pollution as no harmful chemicals or pollutants would get released in the process.

Explanation of incorrect options:

Option A:

Clothes washing is one of the sources of water pollution as it would discharge detergent and soap, which are harmful chemicals at the time of washing.

Option B:

Animals bathing in a water source could also result in water pollution as animals might be covered with excreta and dust, which would eventually get released into the water body resulting in pollution.

Option C:

Washing of motor vehicles would result in water pollution as motor vehicles generate harmful substances and soot, which will eventually get washed in the water resulting in pollution.

Final answer: Swimming in the pond would produce the least pollution of water.


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