EVERYDAY SCIENCE

Detailed explanation-1: -These harmful materials are called pollutants. 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.

Detailed explanation-2: -Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

Detailed explanation-3: -From chronic bronchitis to lung cancer, air pollution has the potential to raise the risk of illness. Air pollution and its link to the respiratory system is quite obvious. However, air pollution is also known to affect the circulatory system and the nervous system.

Detailed explanation-4: -Exposure to high levels of air pollution can cause a variety of adverse health outcomes. It increases the risk of respiratory infections, heart disease and lung cancer. Both short and long term exposure to air pollutants have been associated with health impacts.

Detailed explanation-5: -Nitrogen Dioxide NO2 is the most harmful of these compounds and is generated from the combustion of fuel engines and industry. It can damage the human heart and lungs and it reduces atmospheric visibility at high concentrations.