Question
On 21st June, the Sun
(a) Does not set below the horizon at the Arctic Circle
(b) Does not set below the Horizon at Antarctic Circle
(c) Shines vertically overhead at noon on the Equator
(d) Shines vertically overhead at the Tropic of Capricorn
Answer:
A
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Explanation:
On 21st June, the Sun does not set below the horizon at the Arctic Circle. This phenomenon is known as the "midnight sun" and occurs during the summer solstice. The Arctic Circle is located at approximately 66.5 degrees north latitude. On this day, the tilt of the Earth's axis is such that the Sun remains above the horizon for a full 24 hours at latitudes north of the Arctic Circle, resulting in continuous daylight during this period.