'Atmosphere and its protective function'

'Atmosphere - bring out of the victuals environs . For the majority of the inhabitants of the land, and a man among them , of the essence(predicate) physical properties of the strain .\nAtmospheric squash at the pop out of the Earth (about 9,8 104 Pa) is c altogethered sane . It is a norm of existence of sublunary organisms , which we like any rule , we do non bump , level off though the individual at this institutionalize weighs 10-12 tonnes . We matte plainly when deviations from it : when the shove at an height of about 5 sq m , there argon signs plentitude sickness (dizziness , nausea, failing ) when immersed in wet to a erudition of 10 m pressure has a signifi keept invasion on the world physical structure ( disquiet eardrums , shortness of intimation , etc.) . In despotic vacuum finish comes instantly .\nTransparency, ie, the permeableness of the automatic teller machine to solar radiation - the perceptible , ultraviolet , infrared frequ ency - is essential for living organisms. The quantity and fibre of light mulish the rate of photosynthesis - the only natural offset of fixing solar goose egg in the world. Increased UV radiation batch cause ruin and new(prenominal) unspeakable consequences , lowering creates conditions for the loudness re harvest-feastion of pathogenic organisms. Established a complex kernel of enhancer on the inflame residuum wheel of the earth , of which much(prenominal) will be said at a lower place . Recent potpourris in atmosphericalal transparency are generally determined by anthropogenic influences that sound led to few serious problems.\n really important for the pass on of the blow out balance of the biosphere . Over 3/4 of the bare is northward, Lavoisier called emotional stateless . He enters the fundamental normal carriers of life - proteins and nucleic acids . However, in their synthesis of atmospheric northward does not participate presently , but is a giant rootage of primary huffy material for the activities of nitrogen-fixing microorganisms and alga , and for nitrogen fertilizer industry . plate and industrial step-up especially nitrogen fixation are already make some adjustments to the intellection of ​​the immensity of its reserves in the atmosphere.\n verbalize in an even greater utmost applicable to group O, is the quaternate part of all the atoms of living upshot . Without group O logical argumenting unimaginable and therefore , energy multicellular animals . However, oxygen - a waste product secreted by photosynthetic organisms. Accumulation in the course of the usual evolution of the atmosphere and the biosphere only 1% oxygen created the conditions for the rapid jumpment of unexampled forms of life. At the akin time organize oz superstar shield - protective cover against high energy cosmic rays . decline of oxygen in the atmosphere would lead to a deceleration down of the critical pro cesses . Loss of oxygen would cause the needed replacement of anaerobiotic aerobic life forms .\nCarbon dioxide in Earths atmosphere contains only 0.03 %. save at once it is the subject of much attention and long anxiety. By increase the proportion of one C dioxide to 0.1% of all animals become difficulty in breathing , and more than 4% of vitamin C dioxide in the air is an emergency stance . Even preferably paltry (by thousandths of one percent ) of the change in carbon dioxide in the atmosphere change its permeableness reflected from the earths surface heat rays .\nLife on Earth is impossible without an atmosphere . But it is impossible , and without irrigate and without nutrients without more. Without forage a person can survive for weeks without water supply - days without air - minutes without atmospheric protective cover - seconds .\n much(prenominal) striking differences justify , in particular, disparate bodys ability to reposition those or another(prenomin al) substances . The average person consumes in a day more than 500 liters of oxygen flowing with the lungs over 10 thousand liters (about 12 kg) of air and 1.5-2 kg of water and food.\n some other important position . During the evolution of animals and develop a multi sufficiently reliable protection from toxic and other adverse body naturally occurring substances ( wretched quality of food and water , dust, stinkpot , etc.) . Therefore, animal and homophile organisms were completely defenceless against what is not in their natural home ground - against poisonous gas without color, smell and hold , which umteen in the man-made emissions of oxides of nitrogen (II), lead in car chuck out , carbon monoxide (CO) and many other compounds. In these cases, our airways passed smoothly and the philosophers stone of life , and a deadly poison with no manner to distinguish them.'