The Universe and Solar System 6th Social Science Lesson 5 Questions in English
21. Which of the following statement is incorrect?
1) The inner planets are comparatively smaller in size and are composed of Gas
2) The surface of inner planets has mountains, volcanoes and craters
a) 1 alone = Answer
b) 2 alone
c) 1, 2
d) None
Explanation
The inner planets are comparatively smaller in size and are composed of rocks. The surface of inner planets has mountains, volcanoes and craters.
22. Which of the following is a Jovian Planets?
a) Mercury
b) Uranus = Answer
c) Pluto
d) Earth
Explanation
The last four planets are called as Outer Planets or Jovian Planets (Jupiter, Saturn, Uranus, and Neptune).
23. Which of the following statement is incorrect?
1) The last four planets are also called Gaseous Giants.
2) An asteroid belt is found between Mars and Saturn = Answer
Explanation
The last four planets are also called Gaseous Giants. An asteroid belt is found between Mars and Jupiter.
24. Which of the following statement is correct regarding Mercury?
1) Mercury is the smallest and closest planet to the Sun.
2) It is named after the Roman deity ‘Mercury’, the messenger to the Gods.
a) 1 alone
b) 2 alone
c) 1, 2 = Answer
d) None
Explanation
Mercury is the smallest and closest planet to the Sun. It is named after the Roman deity ‘Mercury’, the messenger to the Gods.
25. Which of the following statement is incorrect regarding Mercury?
1) Mercury is an airless and waterless planet
2) It has an atmosphere and so experiences extremes of temperature.
a) 1 alone
b) 2 alone = Answer
c) 1, 2
d) None
Explanation
Mercury is an airless and waterless planet. It does not have an atmosphere and so experiences extremes of temperature.
26. How many satellites does Mercury has?
a) 2
b) 1
c) 4
d) 0 = Answer
Explanation
Mercury is the smallest and closest planet to the Sun. It has no natural satellites. It is an airless and waterless planet.
27. Which of the following planet can be viewed with naked eyes?
a) Mercury = Answer
b) Jupiter
c) Saturn
d) None
Explanation
Mercury can be viewed in the morning and evening with naked eye. It does not have an atmosphere and so experiences extremes of temperature
28. Which of the following planet is called as Earth’s twin?
a) Mercury
b) Venus = Answer
c) Mars
d) Jupiter
Explanation
Venus is the second planet from the Sun. It is called Earth’s twin, as it is almost the same size as the Earth.
29. Which of the following planet has longest rotation period?
a) Venus = Answer
b) Mercury
c) Jupiter
d) Uranus
Explanation
Venus (The Hottest Planet) has the longest rotation period (243 days) among the planets in the Solar system.
30. Which of the following statement is correct?
1) Venus rotates in the opposite direction to all other planets except Uranus.
2) It has no natural satellites like Mercury
a) 1 alone
b) 2 alone
c) 1, 2 = Answer
d) None
Explanation
Venus rotates in the opposite direction to all other planets except Uranus. It has no natural satellites like Mercury.