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प्रश्न
Give reasons for the following statement :
The duration of day and night is equal everywhere on 21st March and 23rd September.
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उत्तर
These are two special positions in the revolutionary course of the Earth when days and nights are equal throughout the world. They are the two equinox, the first on March 21 st and the second on September, 23 rd. Because on these two days the mid-day sun is overhead at the equator, the positions of both the hemispheres are the same in respect of the sun.
संबंधित प्रश्न
What is a geographic grid?
Which line is known as the Prime Meridian?
What is the globe? State the importance of a globe.
Give a reason for the following:
A globe is the most popular model of the earth.
Explain how latitudes and longitudes help to determine the position of a place on the globe?
Mention one effect of seasons in low and high latitudes.
Give a geographical reason for the length of day and night is not equal at all places on the earth.
Describe how the duration of sunlight changes from the Equator to the Poles with respect to the angle of incidence during the solstices.
At which latitude is the Sun overhead on 22nd – December?
Give reasons for the following :
The duration of day and night is equal everywhere in the world on 21st March
