EDUCATION (CBSE/UGC NET)

Detailed explanation-1: -Pollutants are usually released into the environment through cycles that flow between air, land and water, until they are buried in lakes or deep ocean sediments. However, wildfires, floods volcanic eruptions, tsunamis or earthquakes can release these elements suddenly and in large quantities.

Detailed explanation-2: -natural sources, including volcanic eruptions, windblown dust, sea-salt spray and emissions of volatile organic compounds from plants.

Detailed explanation-3: -These are the resources that are found in the environment and are developed without the intervention of humans. Common examples of natural resources include air, sunlight, water, soil, stone, plants, animals and fossil fuels.

Detailed explanation-4: -mobile sources – such as cars, buses, planes, trucks, and trains. stationary sources – such as power plants, oil refineries, industrial facilities, and factories. area sources – such as agricultural areas, cities, and wood burning fireplaces. natural sources – such as wind-blown dust, wildfires, and volcanoes.