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Who discovered the Solar System?
How many kilometres are represented by 1o of latitude?
Average distance from the Sun to Earth is -
150 million km
Which one of the following is present in the largest amount in terms of percent by mass in the Earth's crust?
The difference in the duration of day and night increases as one moves from -
Equator to pole
The Sun is never overhead at any time in -
1, 2 and 3
Which of the following statements with regard to the term 'great circle' is not correct?
Only one great circle can be drawn on a sphere
The term 'syzygy' is referred to when the -
Moon, Sun and Earth lie along a staright line
Which among the following areas is conducive for well irrigation?
Deltaic regions of Mahanadi, Godavari and Krishna
Statement I: Insolation is greatest, when the Sun is directly overhead and the Sun's rays are vertical.
Statement II: When the Sun is lower in the sky, the same amount of solar energy spreads over a greater area of ground surface, so insolation is lower.
Both the statements are true, but Statement II is not the correct explanation of Statement I