universe & solar system section 13 Practice Questions Answers Test with Solutions & More Shortcuts

Universe, solar system and Astronomy PRACTICE TEST [13 - EXERCISES]

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universe & solar system section 13

Question : 16 [SSC CPO SI 2006]

Which one of the following planets has no moon?

a) Mercury

b) Pluto

c) Neptune

d) Mars

Discuss »

Answer: (a)

Mercury and Venus are the only two recognized planets in our solar system without moons.

However, there are many, many planets in the universe and a significant portion of these, if our solar system is assumed representative of at least a significant portion of the universe’s planetary systems likely have no moons.

Question : 17

Which one of the following conditions is most relevant for the presence of life on mars?

a) Occurrence of ice cap and frozen water

b) Occurrence of ozone

c) Thermal conditions

d) Atmospheric composition

Discuss »

Answer: (a)

Question : 18 [NDA 2009- I]

Assertion (A)
Venus is the brightest object in the sky after the Sun.
Reason (R)
Venus is the second planet from the Sun in our solar system.
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 the correct explanation of A

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

Discuss »

Answer: (d)

Question : 19

When the earth is at its maximum distance from the sun it is said to be in

a) apogee

b) perigee

c) perihelion

d) aphelion

Discuss »

Answer: (d)

Question : 20

Match the following and choose the correct option from the codes given below:

List I List II
A. Big Bang Theory 1. The explosion occurred and the matter that flung from the explosion condensed into galaxies.
B. Inflation theory 2. At one point in time, the matter of the universe started flying outward faster than the current speed of light.
C. Oscillating universe 3. Universe continuously theory expands and contracts.
D. The steady-state theory 4. As the universe expands, new matter is created to fill the leftover spaces.
Codes: A B C D

a) A-1, B-2, C-3, D-4

b) A-4, B-3, C-1, D-2

c) A-3, B-2, C-1, D-4

d) A-2, B-3, C-4, D-1

Discuss »

Answer: (a)

  1. Big Bang Theory- Explosion occurred and the matter that flung from the explosion condensed into galaxies.
  2. Inflation Theory- At one point in time, the matter of the universe started flying outward faster than the current speed of light.
  3. Oscillating Universe Theory- Universe continuously expands and contracts.
  4. The Steady-State Theory- As the universe expands, new matter is created to fill the leftover spaces.

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