The planets are kept in motion in their respective orbits by ________
A. Their great size and spherical shape
B. The rotation and density
C. Gravitation and centrifugal force
D. Rotation of the sun on its axis
Answer: Option C
Related Questions on Universe
A. Earth and Jupiter
B. Jupiter and Saturn
C. Saturn and Earth
D. Saturn and Neptune
A. Contracted star with intense gravitational pull
B. Star with very low surface temperature
C. Star with no atmosphere
D. Pulsating star
Messenger satellite has been launched by NASA for the study of
A. Mercury
B. Venus
C. Saturn
D. Jupiter
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