Education System in Uzbekistan

Air Pollution
Upon studying global warming, researchers have determined that air pollution is a significant contributor to this problem. The opaqueness of air-polluting particles in the atmosphere traps the sun rays in and prevents the Earth from cooling off naturally. At the same time, other air pollutants are destroying the outer atmospheric layer, primarily the ozone layer (which prevents too much sunlight from entering). Major changes in weather patterns have been recorded around the world, from unexpected monsoons to expanding deserts, caused by primary and secondary air pollutants contributing to climate change.
Primary air pollutants are small solids and particulates (liquid particles) that are suspended in the air and come at less than 10 micrometers in size. They can be observed in the form of soot, dust, smoke, fumes and mists, but some are invisible to the human eye. Primary air pollutants are released from the reaction of burning fossil fuels, like when a motorized vehicle running on gasoline emits carbon monoxide. Natural gas burned in houses for heating, most types of fires as well as power plants that release carbon dioxide, carbon monoxide, and sulphur dioxide, are also primary air pollutants. Diesel-run cars and some industrial processes release lead fumes, and at 0.5 micrometers in size, they are extremely harmful primary air pollutants. 
Secondary pollutants occur when a primary pollutant reacts with another, often natural substance and creates a different pollutant. Ozone is considered a secondary air pollutant as it is formed when a primary air pollutant, nitrogen dioxide, reacts with the hydrocarbon particles naturally present in sunlight. It is the main component of smog, which is also a secondary pollutant.
Since the exchange of gases does not happen in the same manner for all of the members of the animal kingdom, the negative effects of air pollution strike them in different ways, as well. Depending on whether they use lungs, gills, or passive diffusion across the surface of their skin for breathing, here are some of the most detrimental problems the animal kingdom faces from air pollution.