Question

what do think of when you hear or read the word pollution​

Answer 1

Answer:

dust

Explanation:

dust and waste in Air, Water, land etc.

Answer 2

Pollution is defined as the presence or introduction of contaminants into the natural environment that cause adverse change.

Explanation:

The natural environment in its original form is pristine. It's the human activity or the results of human activity that introduce pollutants to change the nature of this pristine environment. Such contaminants are the pollutants that cause adverse effects due the change in natural environment.

Pollution can be to the air, water, land or soil.

• Air is polluted by smoke and other harmful emissions from factories, burning of vegetable matter, emissions from home appliances and aircraft, etc.
• Water is polluted by the industrial and domestic waste that are discharged into the rivers and other water bodies.
• Land is polluted by mining, afforestation, use of harmful fertilizers and exploitation of land resources by wrong practices in farming.
• Noise and light pollution means the unwanted noise and light present in the surroundings that affect others in its vicinity.
• Pollution leads to various diseases like cancer, asthma, respiratory disorders, allergies, skin diseases, etc.