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What is air? State the composition of air. Write any two properties of air.
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The atmosphere of Earth is the layer of gases, commonly known as air, retained by Earth's gravity, surrounding the planet Earth and forming its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth's surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation).
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air is the mixture of many gases and dust particles. it is also known as the atmosphere.
it is made up of oxygen,nitrogen and other gases.
air is effected by heat, has mass, takes up space
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