1541.Which of the following planets is farthest from the sun according to new scientific research?

A. Mercury
B. Mars
C. Neptune *
D. Uranus

1542. Name two planets which appear as “morning star” in the eastern sky and “evening star” in the western sky?

A. Mars and Venus
B. Jupiter and Mars
C. Saturn and Uranus
D. Mercury and Venus *

1543. Which of the following planets takes the least time to complete one revolution around the sun?

A. Earth
B. Mercury *
C. Mars
D. Venus

1544. Which of the following planets takes the longest time to complete one revolution around the sun?

A. Neptune *
B. Saturn
C. Uranus
D. Venus

1545. The sun Consists mostly of _______________.

A. Helium
B. Hydrogen *
C. Nitrogen
D. Oxygen

1546. Which of the following planets takes very nearly the same time for a rotation on its own axis as does the earth?

A. Jupiter
B. Mars *
C. Neptune
D. Uranus

1547.The only planet in the solar system which rotates on its axis from east to west is _______.

A. Earth
B. Jupiter
C. Neptune
D. Uranus *

1548. The largest number of natural satellites (or moons) that any one of the planets of the solar system has is ________.

A. 5
B. 22
C. 63 *
D. None of these

1549. Which of the following planets has almost the same mass, size and density as the earth?

A. Venus *
B. Mars
C. Saturn
D. Uranus

1550. Who was the second to observe Sun-Spots after IBN ZUBIR?

A. Galileo *
B. Halley
C. Newton
D. None of the above

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