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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 a geographic grid?
What are the lines of latitude?
Which temperature zone receives almost vertical rays of the sun and which zones receive slanting rays?
Which temperature zone receives slanting rays?
Give a geographical reason for the length of day and night is not equal at all places on the earth.
Give a geographical reason for the period of twilight and dawn increases polewards.
Give reasons for the following
Vertical rays are hotter than slanting rays.
On which two days are the days and nights equal all over the world and why ? What name do you give to these days?
Name the shortest day in the Northern Hemisphere.
What is a Geoid?
