The Universe and Solar System 6th Social Science Lesson 5 Questions in English
51. The largest satellite of Uranus is_____
a) Ganymede
b) Callisto
c) Titania = Answer
d) Titan
Explanation
Uranus has 27 natural satellites, of which Titania is the largest. Its axis is tilted so much that, it appears to orbit the Sun on its sides like a rolling ball.
52. Neptune is named after______
a) Roman god of sea = Answer
b) Greek god of sea
c) Roman god of agriculture
d) Greek god of agriculture
Explanation
Neptune is the eighth and the farthest planet from the Sun. There are strong winds in this planet. It is named after the Roman god of sea.
53. The largest satellite of Neptune is_____
a) Titan
b) Titania
c) Deimos
d) Triton = Answer
Explanation
Neptune has 14 natural satellites, the largest being Triton. Because of its distance from the Sun, Neptune is one of the coldest planets in the solar system.
54. Which of the following feature of Neptune is used to distinguish it from Uranus?
a) striking blue and white features = Answer
b) striking blue and green features
c) striking blue and red features
d) striking violet and white features
Explanation
The striking blue and white features of Neptune help to distinguish it from Uranus.
55. Which of the following statement is correct?
1) Dwarf planets are small celestial bodies found beyond the planet Neptune
2) They are extremely cold and dark
a) 1 alone
b) 2 alone
c) 1, 2 = Answer
d) None
Explanation
Dwarf planets are small celestial bodies found beyond the planet Neptune. They are extremely cold and dark. They are almost spherical in shape, but unlike planets they can share their orbit with other dwarf planets.
56. How many dwarf planets are found in our solar system?
a) 4
b) 5 = Answer
c) 10
d) 8
Explanation
The five dwarf planets of the solar system are Pluto, Ceres, Eris, Makemake and Haumea. Dwarf planets are small celestial bodies found beyond the planet Neptune.
57. How much time does moon takes to revolve around earth?
a) 28 days 8hours
b) 27days 8 hours = Answer
c) 30 days 8 hours
d) 29 days 8hours
Explanation
Satellites are celestial objects, which revolve around the planets. The moon is the Earth’s only satellite. It revolves around the Earth once in every 27 days and 8 hours.
58. which of the following statement is incorrect?
1) The Moon has no atmosphere
2) The surface of the moon is characterized by craters created by the impact of meteors.
a) 1 alone
b) 2 alone
c) 1, 2
d) None = Answer
Explanation
The Moon – Earth’s Satellite has no atmosphere. The surface of the moon is characterized by craters created by the impact of meteors.
59. Which of the following statement is correct?
1) The size of the moon is one-quarter of the Earth.
2) The Moon is the only celestial body where humans have landed.
a) 1 alone
b) 2 alone
c) 1, 2 = Answer
d) None
Explanation
The distance between the moon and the Earth is about 3, 84,400 km. The size of the moon is one-quarter of the Earth. The Moon is the only celestial body where humans have landed.
60. In which year Chandrayaan – 1 was launched?
a) 2008 = Answer
b) 2007
c) 2010
d) 2009
Explanation
ISRO launched India’s first ever Moon mission, Chandrayaan – 1 in 2008.