Geography
Air pollution is the contamination of air by pollutants. In this context answer the following:
How do industries pollute the air?
Answer
Industries such as chemical industries, paper and pulp mills, cotton mills and petroleum refineries produce most air pollution. The cement factories emit dust, which is potential health hazard. The smoke coming out from the factories has small particles of dust, carbon, metals, other solids, liquids and radioactive materials which get mixed in smoke and pollute the air.
The burning of sulphur in coal or heavy oil in thermal power plants releases sulphur dioxide in the air. Sulphur dioxide combines with oxygen and water to form sulphuric acid in the atmosphere which is a health hazard. Besides, it produces acid rain.
Related Questions
Air pollution is the contamination of air by pollutants. In this context answer the following:
Based on their origin, how can air pollutants be classified?
Air pollution is the contamination of air by pollutants. In this context answer the following:
How does the use of automobiles cause air pollution?
Air pollution is the contamination of air by pollutants. In this context answer the following:
Mention any three air pollutants and two sources of each.
With reference to the sources of water pollutants answer the following questions:
What are the domestic sources of water pollution?