Which of the following is not the Cause of Pollution?

The correct answer is Option (3) → Climate Change

Pollution comes from the waste products of human activities. When more people, more towns and more industries use water, air and land, they release more waste into them.

Option (1) Population explosion — A cause of pollution. Indiscriminate use of water by an increasing population has made water quality much worse.

Option (2) Heavy Urbanisation — A cause of pollution. Crowded and congested cities have poor sanitary conditions and foul air, and they produce huge amounts of solid waste.

Option (3) Climate Change — Not a cause of pollution. Climate change is a change in climate at the global scale. It is not a human activity that releases waste into air, water or land.

Option (4) Industrialisation — A cause of pollution. Industrial expansion and industrial effluents pollute the rivers, the air and the land.

Note: The given answer is as per the official NTA Answer Key. The book does not give a list of the causes of pollution in clear words. It only shows that increasing population, industrial expansion and overcrowded urban areas pollute water, air and land, while climate change is not shown as a cause of pollution.