The shortest day or the Winter Solistice occurs every year on
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June 21
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December 22
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March 21
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September 23
B
Correct answer
Explanation
The Winter Solstice in the Northern Hemisphere occurs around December 21-22 when the North Pole is tilted farthest from the Sun, making it the shortest day. June 21 is the Summer Solstice (longest day), March 21 is the spring equinox, and September 23 is the autumn equinox when day and night are equal.