61. One degree of the circumference of the earth measures(approx.) ________
62. Days and nights are caused by :
1. rotation of the earth on its axis
2. revolution of the earth around the sun
3. inclination of the earth's axis
1. rotation of the earth on its axis
2. revolution of the earth around the sun
3. inclination of the earth's axis
63. The Earth rotates on its axis at an inclination of
64. If a solar eclipse occurs when the moon is quite far from the earth, the eclipse would likely to be ________
65. Which of the following best describes longitude?
66. Bridgmanite is
67. Lunar eclipse is caused when the ________
68. Which one of the following is the time required for the Earth to return to a given point in its orbit with reference to fixed star, called?
69. Which of the following is not an effect produced by rotation of earth?
70. The Tropic of Cancer does not pass through
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