Huge congregations of stars that are held together by the force of gravity are known as-
Ans. (c)
State whether the following statements are true or false:
(a) Constellation Orion can be seen only with a telescope.
(b) Pole Star is a member of the Solar system.
(c) Mercury is the smallest planet of the Solar system.
(d) Uranus is the farthest planet in the Solar system.
(e) There are nine planets in the Solar system.
(f) Comets are members of the solar system.
(g) INSAT is an artificial satellite.