1.

Fill in the blanks :(i) Our galaxy is called ………… .(ii) For measuring large distances, ………… is used as a unit.(iii) The speed of light is …………. km/s.

Answer»

(i) Our galaxy is called the Milky Way and Mandakini.

(ii) For measuring large distances, the light year is used as a unit.

(iii) The speed of light is 300000 km/s.



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