NEET BIOLOGY

Detailed explanation-1: -Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories. Pollutants damage the quality of air, water, and land. Many things that are useful to people produce pollution.

Detailed explanation-2: -There are natural processes that create air pollution-such as sulfur and chlorine gases from volcanic activity, smoke and ash from wildfires, dust storms, and biological decay-but most pollution enters the air from human-made (anthropogenic) sources.

Detailed explanation-3: -Air pollutants are emitted from a range of both man-made and natural sources.

Detailed explanation-4: -Types of Sources stationary sources – such as power plants, oil refineries, industrial facilities, and factories. area sources – such as agricultural areas, cities, and wood burning fireplaces.

Detailed explanation-5: -These activities include driving cars, trucks and buses; burning coal, oil, and wood; and manufacturing chemicals. Air pollution can even come from smaller, everyday activities such as dry cleaning, filling your car with gas, and degreasing and painting operations.