universe & solar system section 8 MCQ Questions & Answers Detailed Explanation

Question : 1

About 95 per cent of active volcanoes occur at the

1. plate subduction zones
2. transform faults
3. island arcs
4. mid-oceanic ridges.

a) 1 and 4

b) All of the above

c) 1 only

d) 1 and 2

Question : 2

Consider the following statements regarding 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) 1 and 3 only

b) 1, 2 and 3

c) 1 and 2 only

d) 1 only

Question : 3

The permanent tilt of the earth’s axis and the revolution of the earth in its orbit together cause

1. deflection of winds and ocean currents.
2. differences in time between places on different meridians.
3. varying lengths of day and night at different times of the year.
4. changes in the altitude of the mid-day sun at different times of the year.

a) 3 and 4

b) 1, 2 and 3

c) 1 and 4

d) 2, 3 and 4

Question : 4

Which of the following stars is known as Fossil star?

a) Red Giant

b) White Dwarf

c) Dog Star

d) Protostar

Question : 5

A person stood alone in a desert on a dark night and wanted to reach his village which was situated 5 km East of the point where he was standing. He had no instrument to find the direction but he located the pole star. The most convenient way now to reach his village is to walk in the

a) Direction keeping the pole star to his left

b) Direction keeping the pole star to his right

c) Direction opposite to the pole star

d) Direction facing the pole star

Question : 6

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

a)

1 1 2 3

b) 1 3 2 1

c) 3 4 1 2

d) 2 3 4 1