36.
Which of the following celestial bodies bear, 'The Sea of Tranquility' and 'The Ocean of Storms' ?

37.
Who founded the word "Geography"?

38.
The Saturn rings were discovered by ________

39.
The same side of the moon always faces the Earth because ________

40.
The orbits of planets around the Sun, or of satellites around the Earth, can be ________

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