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how to take a seminar on stars. please help me with some tips

There are several different kinds of stars in the sky. Some are very big. A couple of stars have been found that are 100 to 200 times larger than the sun. Some very old stars are smaller than the Earth. Scientists study stars and place them in groups based on how they are alike and how they are different. Red Dwarf Star,Yellow Star,Giant Star,Blue Giant Star,Super Giant Star etc are different kinds of star.Explain about each in your seminar.


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