- Sektör: Education
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Founded in 1879 and named after Texas' greatest hero General Sam Houston, Sam Houston State University is public shcool within the Texas state university system and located in Huntsville, Texas.
It's a multicultural institution that offers 79 bachelorette degree programs, 54 masters and five ...
Scale for measuring temperature that sets zero degrees at the point of which molecular motion desists, that is, the point at which there is no heat. It is also known as the absolute scale.
Industry:Chemistry; Weather
Second planet from the sun; mass 4. 872 x 10<sup>27</sup>g; radius of cloud surface about 6100 Km; radius of solid surface about 6056 Km; surface temperature 737K; temperature of cloud tops 250K; cloud composition more than 75% H<sub>2</sub>SO<sub>4</sub> and about 25% water; atmosphere (by volume) 90-95% CO<sub>2</sub> with traces of SO<sub>2</sub>, water, CO, H<sub>2</sub>SO<sub>4</sub>, Ar, Ne, HF, HCl. Atmospheric pressure 92-95 atm.
Industry:Chemistry; Weather
Sets the levels of air quality for the United States , in the Code of Federal Regulations (40 CFR ß50. 2), to protect the population's health. These are the minimum and might be more stringent from state to state.
Industry:Chemistry; Weather
SF<sub>6</sub> an inert gas categorized as hydrofluorocarbons. It is used as an insulator in circuit breakers and is used to produce other elements such aluminum and magnesium. Sulfur hexafluoride absorbs thermal infrared radiation and could increase global warming as its concentration in the atmosphere increases; therefore it is a greenhouse gas.
Industry:Chemistry; Weather
Simply the change of useful land into a desert environment. This influences atmospheric chemistry because the humidity and biospheric gas emissions from the modified biome is modified by this process.
Industry:Chemistry; Weather
Small amounts of condensed matter in the atmosphere, often originated from the incomplete combustion of coal and oil or from dust storms and also generated from anthropogenic sources like mining or metallurgy. Some portion of these particles are suspended in air--depending on atmospheric conditions--causing the warming or the cooling of atmosphere by changing the amount of radiation that reaches the earth's surface. Particles composed of black carbon, or soot for instance, warm the atmosphere by absorbing sunlight and heating the surrounding air. Other particles scattering sunlight back to space resulting in a cooling of the atmosphere.
Industry:Chemistry; Weather
Small, condensed atmospheric matter, sometimes also known as nucleation mode particles, that are smaller than 0. 1 µm in diameter. These particles are the most abundant in the atmosphere when classifying atmospheric particles by size.
Industry:Chemistry; Weather
SO<sub>2</sub> This is a colorless gas consisting of a single sulfur atom and two oxygen atoms. Sulfur dioxide is a major primary pollutant in the atmosphere originating mostly from coal fired power plants and other fossil fuels combustion. In the atmosphere, sulfur dioxide is usually oxidized by ozone and hydrogen peroxide to form sulfur trioxide, a secondary pollutant. Sulfur trioxide, similar to sulfur dioxide, is extremely soluble in water. If these sulfur oxides are present in the atmosphere when condensation occurs, droplets of sulfuric acid (acid rain) are formed. Volcanic eruptions provide a natural source of sulfur dioxide in the atmosphere. However the real problem associated with the production of sulfuric acid in the atmosphere is not with the sulfur dioxide expelled by volcanoes. Anthropogenic production of sulfur dioxide, caused by the burning of fossil fuels, is largely responsible for damage caused by acid rain.
Industry:Chemistry; Weather
SO<sub>4</sub><sup>2-</sup> The sulfate anion in the atmosphere is the result of the oxidation of sulfur dioxide (SO<sub>2</sub>). The sulfate anion is water soluble and is removed from the atmosphere through precipitation.
Industry:Chemistry; Weather
Soil, silt and rock located in perpetually cold areas which remains frozen year-round. Though a thin layer may thaw during summer months, the majority of the permafrost in a given location will remain frozen until the local climate dramatically changes, as from continental drift toward the equator or global warming.
Industry:Chemistry; Weather
