The orbits of planets around the Sun, or of satellites around the Earth, can be ________
A). Circular and elliptic
B). Circular and hyperbolic
C). Elliptic and parabolic
D). Parabolic and hyperbolic
The same side of the moon always faces the Earth because ________
A). Moon and the Earth have gravitational force
B). Moon cannot change its position
C). The period of rotation of the Moon on its axis and period of revolution around' the Earth is almost the same
D). The period of rotation of the Moon is not equal to the period of rotation of the Earth
The Saturn rings were discovered by ________
A). Copernicus
B). Newton
C). Galileo
D). None of these
Who founded the word "Geography"?
A). Ptolemy
B). Eratosthenes
C). Hicatus
D). Herodotus
Which of the following celestial bodies bear, 'The Sea of Tranquility' and 'The Ocean of Storms' ?
A). Mars
B). Venus
C). Moon
D). Sun