explain the feature of atmosphere
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Answer:
An atmosphere is the thin blanket of air that surrounds the surface of the Earth. ... The gases like Nitrogen, Oxygen, Argon, Carbon dioxide, Neon, Helium etc, contribute to the Earth's atmosphere. It is divided into 5 layers- exosphere, thermosphere,mesosphere, stratosphere and troposphere.
Answer:
The atmosphere of Earth is composed of nitrogen (about 78%), oxygen (about 21%), argon (about 0.9%), carbon dioxide (0.04%) and other gases in trace amounts.[3] Oxygen is used by most organisms for respiration; nitrogen is fixed by bacteria and lightning to produce ammonia used in the construction of nucleotides and amino acids; and carbon dioxide is used by plants, algae and cyanobacteria for photosynthesis. The atmosphere helps to protect living organisms from genetic damage by solar ultraviolet radiation, solar wind and cosmic rays. The current composition of the Earth's atmosphere is the product of billions of years of biochemical modification of the paleoatmosphere by living organisms.
The term stellar atmosphere describes the outer region of a star and typically includes the portion above the opaque photosphere. Stars with sufficiently low temperatures may have outer atmospheres with compound molecules.
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