We live in a galaxy which has a diameter over, 1000 light years, 10000 light years, 100000 light years, 1000000 light years, the space is completely silent?, yes!!!!!!, no!!!!!!!, Betelgeuse is a named celestial object of what sort?, Constellation, Galaxy, A Star, Satellite, Which of the following is indicated by the colour of a star?, . Weight, Distance, Temperature, Size, The radiant energy of the sun is transmitted in the form of ________, Short waves, Long waves, Particles, None of these.

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