universe & solar system section 6 Practice Questions Answers Test with Solutions & More Shortcuts

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

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Question : 21 [MPPCS (Pre) 2015]

World Earth Day is celebrated on

a) 7 April

b) 7 March

c) 22 March

d) 22 April

Discuss »

Answer: (d)

Question : 22 [MPPCS (Pre) 1995]

The ‘Sea of Tranquitity’ lies on

a) Jupiter

b) Moon

c) Sun

d) Earth

Discuss »

Answer: (b)

Question : 23 [UPPCS (Pre) 2005]

When the Moon size is half of the full Moon, the angle between the Sun, the Earth and the Moon is

a) 180º

b) 270º

c) 90º

d) 45º

Discuss »

Answer: (c)

Question : 24 [SSC MT 2011]

The planet nearest to the Sun is :

a) Mars

b) Venus

c) Mercury

d) Earth

Discuss »

Answer: (c)

Mercury is the innermost planet (nearest to the Sun) in the Solar System. It is also the smallest, and its orbit is the most eccentric (that is, the least perfectly circular) of the eight planets. It orbits the Sun once in about 88 Earth days, completing three rotations about its axis for every two orbits.

Question : 25

A team of scientists at Brookhaven National Laboratory including those from India created the heaviest antimatter (anti-helium nucleus). What is/are the implication/ implications of the creation of anti-matter?

  1. It will make mineral prospecting and oil exploration easier and cheaper.
  2. It will help probe the possibility of the existence of stars and galaxies made of anti-matter.
  3. It will help understand the evolution of the universe.
Select the correct answer using the codes given below :

a) 3 only

b) 1, 2 and 3

c) 2 and 3

d) 1 only

Discuss »

Answer: (c)

It will help probe the possibility of the existence of stars and galaxies made of anti-mater.

It will also help in understanding the evolution of the universe.

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