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Acronym References

NA
What is NA ?
Natural Approach
Approach in natural language learning . the
one of the method of language training.
is that the same way you teach a child the mother tongue on your own without training, retro, and for the natural wealth....
O3
What is O3 ?
Ozone
Ozone is one of the oxygen is to the formula O3 is a gas with very high. Ozone is usually unstable and has been in many reactions such as the chlorine acts with the mechanism of the compound with the protein and the enzyme reducer, that for breathing neuron is important, as germs cache operates. Property this gas makes up the industrial applications have a lot of in concentrations higher than 100 component in Billion effect damage as severe on the lining and organs of the respiratory species|ozone in the atmosphere close to the ground]] of the most important air pollutants will be considered but ozone contained in the ozone layer shows to animals and plants is beneficial because of the arrival of ultraviolet light and beams of high-energy to the Earth helps prevent. Ozone is an element 3 is most little bit, it molecules 3 is....
SO2
What is SO2 ?
Sulfur dioxide
Sulfur dioxide is a chemical compound in the form of gas at room temperature with chemical formula SO2, is. This article by volcanoes and a lot of industrial activity can be produced. Burning oil and coal, due to the presence of sulfur-containing compounds in the production of this gas is associated. Usually because NO2 in the atmosphere causing the reaction of the gas with the water vapor contained in the air, and the formation of sulfuric acid can be. This gas is colorless, toxic, has a mass of molar 64, the 07 g mol in. density 1. the 551 grams per liter, etc., melting point 75. the 5 - degree centigrade, and boiling point 10٫0 - degrees Celsius and is flammable, causing not....
NO2
What is NO2 ?
Nitrogen dioxide
Nitrogen dioxide with the chemical formula NO2• is a chemical compound with ID pub low 3032552 is. Its molecule 46. the 0055 g/mol can be. This gas at ordinary temperature a yellow, and at higher temperatures to Brown in color, red shades(auburn color), and is toxic and smell very nasty there.

nitrogen dioxide of the most important air pollutants are expected to be. Every year, millions of tons of this gas in the effect of human activity, especially fossil fuel consumption can be produced. Nitrogen dioxide in combination with moist air produces nitric acid that causes decay, extreme metal can be. Also, in high concentrations, causing smog and the field of view to reduce the intensity and on the growth of plants, the negative effect is. The gas of the greenhouse effect are also important....
PM2.5
What is PM2.5 ?
Particulate Matter 2.5
Particulate matter (PM) to all components of small liquid or solid (except pure water) it can be said that the atmosphere of the earth are scattered and microscopic size or , but larger than the dimensions of molecular have. Particles suspended in the effect of the different processes, natural or human are created. Synthetic sources of suspended particles in urban areas include various industries such as cement, coal, stone, iron, etc., factories, gypsum board, and large turning are.

particles of the deadliest types of air pollution are considered. Especially smaller particles that are less than 10 micrometers in diameter they ... more are as to the lungs and some of them even enter the bloodstream and are can to a heart attack, reduced lung function, etc., beats, irregular heart, aggravate asthma, and sudden death in patients with heart and respiratory leads are. These particles via wind over long distances and has caused the pollution of soil and water also are. They are water, lakes and rivers acidic, and the balance of food in the aquatic environment on the time estimate. Makes getting depleted soil, food resources, and forest and agricultural products, harm, and even rocks and buildings also on the effect of the pollution aerosols can damage the see. Also, particles smaller than 2.5 micrometers of the most important factors blurred the air and reduced visibility are considered....
EUS
What is EUS ?
Europium Sulfide
Sulfide, europium (II) with the chemical formula EuS is a chemical compound with ID pub low 82809 is. Its molecule 184.03 g/mol can be. Appearance of this composition, the powder is black....
Ne
What is Ne ?
Neon
Neon or Nian (Neon) Elemental is a chemical with the chemical Ne and atomic number 10. In nature, for natural gas, bi-color available. Electrical discharge in neon red color-like music. However, this feature has caused that lamp neon uses promotional wide have. Features cryogenics neon 40 times liquid helium and 3 times the liquid hydrogen is in the fridge storage is....
NEO
What is NEO ?
Near Earth Object
A near-Earth object (NEO) is any small Solar System body whose orbit brings it to proximity with Earth. By convention, a Solar System body is a NEO if its closest approach to the Sun (perihelion) is less than 1.3 astronomical units (AU). If a NEO\'s orbit crosses the Earth\'s, and the object is larger than 140 meters (460 ft) across, it is considered a potentially hazardous object (PHO). Most known PHOs and NEOs are asteroids, but a small fraction are comets....