71. How many Geo-synchronous satellites are required for uninterrupted world broadcasting?
72. What is known as High Pressure Subtropical Latitude?
73. Consider the following statements:
1. The tropical year is shorter than the sidereal year.
2. The solar day is longer than the sidereal day.
Which of the statements given above is/are correct?
1. The tropical year is shorter than the sidereal year.
2. The solar day is longer than the sidereal day.
Which of the statements given above is/are correct?
74. The Synchronous satellite moves around the Earth from
75. What is 'Sidereal Day'?
76. The earth revolves round the sun in its orbit by approximately ________
77. The equatorial circumference is greater than the polar circumference by approximately ________
78. Why does Russia have many local time differences?
79. Lunar eclipse does not occur every month because ________
80. A person sets off from Alaska on a Tuesday and reaches New Zealand the next day which will be ________
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