universe & solar system section 7 MCQ Questions & Answers Detailed Explanation

Question : 1

The two planets having no satellite are

a) Mercury and Saturn

b) Venus and Mars

c) Mercury and Venus

d) Earth and Jupiter

Question : 2

Which one of the following planets rotates clockwise?

a) Venus

b) Mercury

c) Mars

d) Earth

Question : 3

Time taken by Moon’s light to reach Earth is

a) 1.58 sec

b) 2.32 sec

c) 1.34 sec

d) 58 sec

Question : 4

What is the difference between asteroids and comets?

1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.
2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury.
3. Comets show a perceptible glowing tail, while asteroids do not.

a) Only 3

b) 1, 2 and 3

c) 1 and 3

d) 1 and 2

Question : 5

Which one of the following statements is correct with reference to our solar system?

a) The sun contains 75 percent of the mass of the solar system

b) The diameter of the sun is 190 times that of the earth

c) The predominant element in the composition of earth is silicon

d) The earth is the densest of all the planets in our solar system

Question : 6

Match List-I with List-II and select the correct answer from the codes given below the list:

a) 4 3 2 1

b) 2 1 3 4

c) 1 2 3 4

d) 2 1 4 3