Answer:
(i) The circle of illumination divides the
equator into two equal parts. The days and nights are, therefore, of the same
duration at the equator.
(ii)
As Kanyakumari is quite near the equator, the day and night difference is
hardly one hour.
(iii)
But as we move away from the equator towards the poles, the variation (difference)
in the duration of day and night becomes greater. It is because of the unequal
division of the parallels of latitudes by the circle of illumination.
(iv)
Kashmir is over 30° away from the equator and so the difference in duration of
day and night is over 4 hours there.
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