NEET BIOLOGY

Detailed explanation-1: -While air pollution originates from a variety of sources, tailpipe emissions from cars, trucks, and buses rank among the largest contributors.

Detailed explanation-2: -Vehicle emissions, fuel oils and natural gas to heat homes, by-products of manufacturing and power generation, particularly coal-fueled power plants, and fumes from chemical production are the primary sources of human-made air pollution.

Detailed explanation-3: -Answer: Cars and buses pollute the air by producing a significant amount of nitrogen oxides, carbon monoxide and some other air pollutants in our environment.

Detailed explanation-4: -Carbon monoxide-This odorless, colorless gas is formed by the combustion of fossil fuels such as gasoline. Cars and trucks are the source of nearly two-thirds of this pollutant. When inhaled, CO blocks the transport of oxygen to the brain, heart, and other vital organs in the human body.

Detailed explanation-5: -Household combustion devices, motor vehicles, industrial facilities and forest fires are common sources of air pollution. Pollutants of major public health concern include particulate matter, carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide.