1) We live in a galaxy which has a diameter over a) 1000 light years b) 10000 light years c) 100000 light years d) 1000000 light years 2) the space is completely silent? a) yes!!!!!! b) no!!!!!!! 3) Betelgeuse is a named celestial object of what sort? a) Constellation b) Galaxy c) A Star d) Satellite 4) Which of the following is indicated by the colour of a star? a) . Weight b) Distance c) Temperature d) Size 5) The radiant energy of the sun is transmitted in the form of ________ a) Short waves b) Long waves c) Particles d) None of these

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