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प्रश्न
Give reasons for the following Statement :
The areas, lying on the Equator, have their duration of day-light almost constant throughout the year.
उत्तर
Days and Nights are equal throughout the year at the equator that is both days and nights are of twelve hours duration there.
Reason: The reason for this is that throughout the course of the earth’s revolution round the Sun, one half of the equator is always in the light and the other is in the dark, that is the circle of illumination always cuts the equator into two equal parts. Hence days and nights are always equal to every point at the equator.
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संबंधित प्रश्न
Which line is known as the Prime Meridian? State its importance.
Give a reason for the following:
A globe is the most popular model of the earth.
Give reasons for the following
The length of day and night is not equal at all places on the earth.
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Twilight and Dawn.
Name the shortest day in the Southern Hemisphere.
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When does the winter solstice occur?
When is the spring equinox?
Give reasons for the following:
The variation in the lengths of day and night goes on increasing polewards.
Why are days and nights equal throughout the world on 21st March and 23rd September?
