Weather and its relations with other sciences

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THE ATMOSPHERE
ORIGIN OF THE ATMOSPHERE
There are different scenarios, according to the planetesimal, the atmosphere was formed by the gases emitted by volcanoes, as the earth grew in size and could stop them by force of gravity. The primitive atmosphere was composed of hydrogen and helium that was changing. the current atmosphere was slowly forming on cooling our planet and forth gases from volcanoes, geysers and fumaroles. Oxygen was formed by the great primeval forests.
LAYERS OF THE ATMOSPHERETroposphere: The first layer is in contact with the surface r you Restrepo and reaches a height approx. of 7km. at the poles and 15 km to 17 km on Ecuador. it is the air that allows the development of life meteorological phenomena occur. Almost all of the tropospheric water vapor. As the temperature drops to 6.5 º C. per 1000 meters high and is stable at -60 º C in the boundary called the tropopause. The Stratosphere: located above the troposphere and no clouds. It extends from the tropopause to 50 km high. In this layer, between 20 km and 40 km in height is the ozone layer, the lower parts of the stratosphere are used by aviation. The stratosphere ends where the temperature presents a surge, this upper limit is calledstratopause. the mesosphere: Located on the stratopause and extends to 80 km to 90 km high, where the temperature decreases sharply to a value of -30 º C and -110 º C at this level is called the mesopause. Thermosphere or Ionosphere: A layer formed by ions that reach the 600 km high. Ions allow the transmission of electromagnetic waves that are reflected in this layer and return to earth, providing the radio broadcast over long distances.




The exosphere: The last layer of the atmosphere. Its boundaries are blurred, as she gradually lost the main characteristics of air to reach outer space.COMPOSITION OF THE ATMOSPHERE: permanent gases: nitrogen, oxygen, argon, neon, helium, krypton, xenon, radon GAS VARIABLES (water vapor, carbon dioxide, Ozone)
The air also contains nitric and nitrous acid, sulfuric acid and traces of sulfur and variable amounts of impurities like dust, salts and microorganisms, together with the flue gases, are the contaminants from the oxygen combines readily atmósfera.El with many elements necessary for combustion.
The carbon dioxide is in the air to a small extent, is produced by animals, combustion, volcanic activity and some processes of organic decomposition.
The nitrogen does not combine easily with other elements, but is a constituent of many organic compounds.
Water vapor is variable, from small quantities to a maximum of 4% in extremely wet conditions.
Ozone is a major oxidant, has a high capacity for the partial absorption of the sun's ultraviolet radiation and limits the amount that reaches the surface of the earth.
Ozone is found between 20 km and 30 km in a 90% absorbs ultraviolet radiation.
TMÓSFERA FUNCTIONS: Atmosphere performs the following functions: * Maintain a safe temperature on the earth, avoiding abrupt changes that would make our planet uninhabitable .* Allows combustion and respiration as possible and with it life itself * Transmits sound * Spread the light * Through their buoyancy enables the elevation of light gas balloons * Provides resistance

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