71.
Why stars look more in west than east?

72.
The largest of the planets is

73.
Who of the following discovered the laws of planetary orbits?

74.
The four largest planets of the solar system in descending order are

75.
The mass of Jupiter is almost

76.
One astronomical unit is the average distance between which of the following?

77.
Which of the following Scientist proved that the path of each planet around the Sun is elliptical?

78.
Which of the following planet is farthest from Sun?

79.
What is the total number of planets move around the Sun?

80.
Which of the following is the largest planet?

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