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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
Mention one effect of seasons in low and high latitudes.
Give reasons for the following
The speed of the rotation of the earth is greater at the Equator than at the Arctic Circle.
Give a geographical reason for the period of twilight and dawn increases polewards.
Give reasons for the following
Noon is hotter than morning.
Describe the two interesting phenomena made by the circle of illumination viz., Solstice and Equinox.
On which dates does the sunshine vertically overhead at Equator?
With the help of a diagram describe the heat zones.
Describe how seasons are made and reversed between the Northern and Southern Hemispheres.
Give reasons for the following statement:
Beyond the tropics, the Sun is never overhead
Give reasons for the following :
Tropical latitudes are the hottest part of the’Earth.
