Universe: MCQs from 21 to 30

21. Which of the following is known as watery planet ______?

(a) Earth

(b) Mercury

(c) Mars

(d) Venus

22. In which part of the solar system is the Sun located ______?

(a) At the left hand corner of the system

(b) At the top of the system

(c) At the bottom of the system

(d) Approximately at the center of the system

23. Which of the following planets contains largest quantity of carbon dioxide i.e. 95% ______?

(a) Mercury

(b) Earth

(c) Venus

(d) Jupiter

24. How many times is the Sun bigger in size than the the Earth ______?

(a) 106 times

(b) 107 times

(c) 108 times

(d) 109 times

25. The temperature at the surface of the Sun and its center is respectively about ______?

(a) 6000 K and 20 million K

(b) 8000 K and 10 million K

(c) 10000 K and 30 million K

(d) 11000 K and 40 million K

26. The Sun consists mostly of ______?

(a) Oxygen

(b) Hydrogen

(c) Helium

(d) Nitrogen

27. Which of one of the following planets reflects back to space the highest percentage of light it receives from the Sun than any other planet of the Solar System ______?

(a) Mars

(b) Earth

(c) Jupiter

(d) Venus

28. All of the following planets have lesser diameter than the Earth, except ______?

(a) Jupiter

(b) Venus

(c) Mars

(d) Mercury

29. Which of the following planets takes very nearly the same time for rotation on its own axis as does the Earth ______?

(a) Uranus

(b) Mars

(c) Jupiter

(d) Neptune

30. The only planet in the Solar System which rotates on its axis from East to West is ______?

(a) Neptune

(b) Earth

(c) Jupiter

(d) Uranus