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No. Human's can alter the atmosphere in ways that can be harmful, but they cannot destroy it.
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Conduction Convection Radiation
Clouds are classified by the height of which they are at, in the Earths atmosphere.
convection, conduction, and radiation
when nitrogen go from soil to back in atmosphere due to nitrogen fixing bacteria then it again return to soil due to lightning, dead animals, roots of plants and by other ways. and again go to atmosphere in this way nitrogen cycled.
Nitrogen (N2) is always in the atmosphere however if you are talking about how it gets released into the atmosphere after it is fixated by lightning absorbed by plants and eaten by 1st level consumers when they or the plant itself decomposes nitrogen it is released back into atmosphere.That's the short of it. Go to wikipedia or read a ecology journal if you wan't to know all the chemicals, reactions, etc in the process-MD
The majority of nitrogen which enters the body does so in the form of protein, which is composed of amino acids. Once the protein is broken down into these subunits, it enters the bloodstream where the cells of the body can absorb it and use it in many different ways. Excess amino acids (and thus excess nitrogen), along with cellular wastes containing nitrogen, are eventually filtered out of the blood by the kidneys and excreted in the urine in the form of urea, a waste product.
They can be changed into photochemical smog, which occurs when nitrogen and all of those crap gases we send to the atmosphere mix. They can also mix with water to become acid precipitation.
Take a look at this diagram. http://upload.wikimedia.org/wikipedia/commons/d/de/Nitrogen_Cycle.jpg
Without air, we would not be able to live, We would try to breathe in oxygen but there would be none there so we would shrivel up and die, just like in space, that's why astronauts wear space suits so they can breathe.
Lightning strikes and special bacteria that grow on plant roots.
lightning & bacterial action (nitrogen fixers).
Chemistry is used in agriculture in many ways. Some chemicals are used for fertilizers and others are used for processing.
Actually nitrogen exist in the atmosphere in dinitrogen (N2) form and cannot be utilized directly. As such bacteria help in converting atmospheric nitrogen into ammonia which then can be used by the plants.
Nitrogen help humans in diffrent ways
it goes down ur throat and then out the other side(: