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  1. The different colours of different stars are due to the variation of

  2. A.

     Temperature

    B.

     Pressure

    C.

     Density

    D.

     Radiation from them

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    Answer : Option A

    Explanation :

    The colour of a star – which varies from bluish-white and yellow to orange and red – is primarily due to its composition and effective temperature. And at all times, stars emit light which is a combination of several different wavelengths. On top of that, the colour of a star can change over time.


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