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Solar System

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 SUN....... 1.Sun is the center of the solar system.2.Sun has helium and hydrogen and makes the sun light up.3.The temprerature of the sun approx 6000c. 4.The sun is 150 million km away from earth.5.The sun is about 110 times wider than the earth. 6.The light from the sun apporox. 8 mints to reach the earth. 7.The mass of sun 2×10 power 30. 8.Composition 74% H, 25% He,and 1% other gasses. 9.All the coal, oil,gasses,and wood on each would only keep the sun burning for a few days.                            (  MERCURY.........)          1.Mercury is the 1st planets to the sun. 2.Temperature 430c.    3.Smallest planet of the solar system.4.Mercury has no moons. 5.Mercury is 58 million km from the sun. 6. One day of mercury is equal to 176 earth days.7.Time take to orbit sun 88 days. 8. very dry,hot, and almost airless. 9. Mass 0.333*10 .          ...
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Introduction to Atmosphere

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 Atmosphere  :  A blanket of Air containing different gases surrounding the earth is called atmosphere.                        ( Important Gases of Atmospher )         1(Name ):   Nitrogen , Oxygen ,Argon,Carbon dioxide,Ozone,      2 (Symbol):   N, Q2 ,Ar,Co,Q3            3 (Ratio) :  78.1% , 21%, 0.93%,0.3%,  0.00006%                 The Ozone layer is like an umbrella  which protects the earth from harmful  ultraviolet  rays of the sun and they can cause skin cancer and many other diseases.          Structure the Atmosphere : Atmosphere is dividing in to the following layers.Each layer has its own physical characteristics. 1)Troposphere ,   2) Stratosphere,3)Mesosphere , 4) Thermosphere or Exosphere      ...
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What are the 5 theories of Origin of Earth

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  Theories of Origin of Earth;    Before going to the theories let us understand what theory is ? A repeatedly tested or widely accepted statement is called theory. This statement is also used to make futher predictions about a natural phenomenon. There are different theories about how earth was formed and no one theory can tell exactly how earth came into being. Scientists believe that the earth was formed more than 4 billion years ago. They found this by studying the radioactive elements contained in the rocks.      1) Creation theory or Mythical Theory : Muslims believe that our Earth and the whole universe is made by Almighty Allah .Christians also believe that the earth was made by God on Seventh day . The Chinese believe that the earth was created by pan ku, a supernatural being. An important man Anaximander suggested that the earth began from a ball of fire that covered a cold mass. When the ball of fire burst into pieces,these pieces became the bodi...
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