Question

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a. Our galaxy is called..................
b. For measuring large distances.................... is used as a unit.
c. The speed of light is .................. km/s
d. There are about ................ stars in our galaxy.
e. The end stage of the sun will be .....................
f. Stars are born out of ............... clouds.
g. Milky way is a .............. galaxy.
h. Stars are spheres of ................. gas.
i. The masses of other stars are measured relative to the mass of the ..................
j. Light takes ........................... to reach us from the moon.
k. The larger the mass of a star the faster is its.................
l. The number of fuels used in the life of a star depends on its .......................

Answer 1

a. Our galaxy is called Milky way.
b. For measuring large distances light year is used as a unit.
c. The speed of light is 3,00,000 km/s
d. There are about billion stars in our galaxy.
e. The end stage of the sun will be white dwarf.
f. Stars are born out of interstellar clouds.
g. Milky way is a spiral galaxy.
h. Stars are spheres of hot gas.
i. The masses of other stars are measured relative to the mass of the Sun.
j. Light takes 1 s to reach us from the moon.
k. The larger the mass of a star the faster is its rate of evolution.
l. The number of fuels used in the life of a star depends on its mass.