Air pollution is not reduced by
(A) Using precipitators
(B) Reusing wastes
(C) Cleaning air
(D) All of the above

Hint: Air pollution refers to the release of pollutants into the air that is determined to human health and the planet as a whole. It is caused by solid and liquid particles and certain gases which are suspended in the air.

Complete Answer:
- Air pollution is caused by the release of harmful oxides of nitrogen, sulphur, and carbon from vehicular exhaust and industrial emissions. And precipitators allow the removal of dust from these emissions.
- And also keep the air clean by minimizing the combustion of fossil fuels, less use of vehicles, and the use of catalytic converters can help in reducing the air pollution.
- Air pollution happens when the solid and liquid particles and certain gases end up in air. These particles and gases are bad for the planet and for our health.
- Breathing air pollution hampers the functioning of lungs among the healthy people who are resulting in the respiratory inflammation and heart problems. Moreover, living in a polluted area and also breathing toxic air increases the risk of cancer, and also it weakens the immune response.

Thus, the option (B) is correct.

Note: Air pollution is the function of hazard of the pollutant and also the exposure to that pollutant. In this, land-use planning is likely to involve transport infrastructure planning. In most developed countries, land-use planning is an important social policy, as well as to protect the environment.