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प्रश्न
Give reasons for the following statement:
The regions, near North Pole and South Pole, have six months of continuous day-light and darkness.
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उत्तर
On account of the obliquity of the earth’s axis, for six months i.e., from March 21 to Sept. 23, the north pole is inclined towards the Sun and is always in the light. During this period the South pole is inclined away from the Sun and is throughout in the dark. Hence it is a day for six months at the north pole and night at the south pole. But from September 23 to March 21st the case is just the opposite. The north pole is inclined away from the Sun and is in the dark while the south pole is inclined, towards the Sun and is in the light.
संबंधित प्रश्न
What is a geographic grid?
Which line is known as the Prime Meridian?
Explain how latitudes and longitudes help to determine the position of a place on the globe?
Give reasons for the following
The speed of the rotation of the earth is greater at the Equator than at the Arctic Circle.
Describe how the duration of sunlight changes from the Equator to the Poles with respect to the angle of incidence during the solstices.
With the help of a diagram describe the heat zones.
Distinguish between:
Vertical and Slanting Rays
Name the shortest day in the Southern Hemisphere.
Give reasons for the following :
Twilight is of longer duration in higher latitudes than at Equator.
Give reasons for the following :
Tropical latitudes are the hottest part of the’Earth.
