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why all planets look different?

Even though all planets are part of the solar system and revolve around the sun,they look different.  Why is it so? Because their composition varies.

Mercury is a small rocky world.  It has a very thin atmosphere of carbon dioxide.  Venus is a white globe completely covered by a larger of white clouds,which are made up of  concentrated sulphuric acid.  The atmosphere is hot and made largely of unbreathable carbon dioxide gas.  Mars is a red planet with an atmosphere of carbon dioxide in which clouds form.  Jupiter appears as a yellowish globe with colourful bands of clouds swirling around it.

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