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प्रश्न
Give reasons for the following :
The duration of day and night is equal everywhere in the world on 21st March
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उत्तर
On March 21 rays of the sun fall vertically on the equator, and because of the inclined axis of the earth, the circle of illumination passes through the two poles resulting in equal duration of day and night all over the world.
संबंधित प्रश्न
What is the globe? State the importance of a globe.
Give reasons for the following
Days and nights are equal at all places on earth on March 21.
Describe how seasons are made and reversed between the Northern and Southern Hemispheres.
Distinguish between :
Twilight and Dawn.
Name the shortest day in the Northern Hemisphere.
On what dates are the days and nights equal throughout the world ?
Name the two ends of the Axis of the Earth.
When does the summer solstice occur ?
When does the winter solstice occur?
Give reasons for the following:
Altitude of the Sun varies at a place according to seasons.
