World enveloped by a thin atmosphere. Weather is the state of the gas are changing rapidly. Factors that cause changes in the atmosphere. There are both external and internal factors. External factors include Energy from the Sun orbits the Earth, including internal factors. The rotation of the Earth. Land and water The living world we live in is the atmosphere (atmosphere), covered with a height of up to 2,000 kilometers from the ground. Layer of the atmosphere that humans breathe air that is from the ground floor to the stratosphere lasting only. Higher in the atmosphere, and not a breath of air. To breathe atmospheric air contains. Nitrogen gas is about 78 percent oxygen, 21 percent carbon dioxide and inert gas than 0.97 percent of the atmosphere include water vapor, dust. Particles and microorganisms with different surface temperature varies according to elevation. Thus provide a basis for dividing the atmosphere into four layers.
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