universe & solar system section 3 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 11

What is the most accurate description of the shape of the earth ?

a) A geoid

b) An oblate sphere

c) A sphere

d) A circle

Answer: (b)

Question : 12

How much time does the light from the nearest star take in reaching the earth ?

a) 4.3 hours

b) 4.3 years

c) 4.3 minutes

d) 12 minutes

Answer: (b)

Question : 13 [SSC Multi-Tasking Staff 2013]

Which planets do not have satellites revolving around them ?

a) Mars and Mercury

b) Neptune and Pluto

c) Mercury and Venus

d) Mars and Venus

Answer: (c)

Of the nine planets, only Venus and Mercury have no known natural satellites. A total of 139 moons, or natural satellites, can be found in the vast solar system.

Question : 14 [NDA 2008-II]

DIRECTIONS :
The following question consist of two statements, one labelled as ‘Assertion (A)’ and the other as ‘Reason (R)’. You are to examine these two statements carefully and select the correct answers to these questions using the codes given below.


Assertion (A)
The equatorial regions bulge outwards by about 21 km compared to poles.
Reason (R)
Earth’s slow rotation reduces the effect of gravity around the equator.
Codes

a) A is true, but R is false

b) A is false, but R is true

c) Both A and R are true, but R is not the correct explanation of A

d) Both A and R are true and R is the correct explanation of A

Answer: (d)

Question : 15

Which of the following phenomenon is/are the effect of the rotation of the earth?

  1. Apparent movement of the Sun, the Moon and the Stars.
  2. Flatness of the poles and bulge at the equator.
  3. Occurrence of sunrise, noon and sunset.
  4. Magnetic field of the earth.
Select the correct answer by using the codes given below:

a) 2 and 3 only

b) 1, 2, 3 and 4

c) 1 and 3 only

d) 1 and 2 only

Answer: (b)

All the given phenomena are the effect of the rotation of the earth. The Earth rotates from the west towards the east.

As viewed from the North Star or polestar Polaris, the Earth turns counter-clockwise.

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958 Universe, solar system and Astronomy based indian geography mcq section 3 question answer with explanation pdf

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