The densest planet of the solar system is
A. | Earth |
B. | Jupiter |
C. | Mercury |
D. | Uranus |
Option: A Explanation : Click on Discuss to view users comments. |
The distance of the nearest star- besides the sun from the earth is
A. | 4.9 x l011m |
B. | 9.5 x 15l5m |
C. | 2 light years |
D. | 4 light years |
Option: D Explanation : Click on Discuss to view users comments. |
Which .of the following "gases is most predominant in the Sun?
A. | Helium |
B. | Hydrogen |
C. | Nitrogen |
D. | Ozone |
Option: B Explanation : Click on Discuss to view users comments. |
The solar,wind is composed of
A. | outward stream ofpr:otons on the sun surface |
B. | ionized gas |
C. | plasma |
D. | all of these |
Option: D Explanation : Click on Discuss to view users comments. |
'Lunar e.clipse does not occur' every month because
A. | The sun's orbit is not always in the same plane as the moon |
B. | the moon revolves at"aslower speed than the earth |
C. | the moon's orbit is not all the time in the same plane as the earth |
D. | None of these |
Option: C Explanation : Click on Discuss to view users comments. |