Q. The planet with the maximum number of satellites is ________.

Answer

Correct Answer : Jupiter

Q. The planets are kept in motion in their respective orbits by ________

Answer

Correct Answer : Gravitation and centrifugal force

Q. The Planets that have no natural satellites are ________.

Answer

Correct Answer : Mercury and Venus

Q. The radiant energy of the sun is transmitted in the form of ________

Answer

Correct Answer : Short waves

Q. The same side of the moon always faces the Earth because ________

Answer

Correct Answer : The period of rotation of the Moon on its axis and period of revolution around' the Earth is almost the same

Q. The Saturn rings were discovered by ________

Answer

Correct Answer : Galileo

Q. The Srnith-tuttle comet will crash with Earth in ________

Answer

Correct Answer : 2126 AD

Q. The strongest evidence that comets are members of our solar system comes from ________

Answer

Correct Answer : Their composition

Q. The sunspots cause ________

Answer

Correct Answer : All of these

Q. The surface temperature of the Sun is measured

Answer

Correct Answer : 6000°C