|(a) Why do the poles experience about six months day and six months night?|
|(b) Why is Norway known as the ?Land of Midnight Sun??|
(a) The poles experience about six months day and six months night because : (i) When the rays of the Sun fall directly on the Tropic of Cancer, the areas near the South Pole receive less heat. (ii) The North Pole is inclined towards the Sun and so, the places beyond the Arctic Circle experience continuous daylight. At the same time, the Southern Hemisphere has the opposite seasons. (iii) Nights are longer and areas beyond the Antarctic Circle get continuous night. The reverse happens again on every year on 2nd December. (b) Norway is known as the 'Land of Midnight Sun' because: (i) The Sun does not go below the horizon or come above it on 21st June. (ii) The Sun moves at a long elevation from horizon to horizon. Although the attitude is very low, it continues shining longer for all the 24 hours.
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