The period of one revolution of sun around the centre of galaxy is called ________
A. Parsec
B. Astronomical year
C. Cosmic year
D. Light year
Answer: Option C
A. Parsec
B. Astronomical year
C. Cosmic year
D. Light year
Answer: Option C
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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