GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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equinox
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a time of year when the sun is directly overhead at the equator at noon, when day and night are of equal length
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a time of year when the sun is directly overhead at one of the tropics during noon
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a time of year when the Sun’s rays directly hit the north pole
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a time of year when the Sun’s rays directly hit the south pole
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Explanation:
Detailed explanation-1: -The “Vernal Equinox” occurs on 21 March and it is also called the “Spring Equinox” in the northern hemisphere. On the 21st of March, Sun shines vertically overhead at noon on the equator.
Detailed explanation-2: -The sun is directly overhead at “high-noon” on the equator twice per year, at the two equinoxes. Spring (or Vernal) Equinox is usually March 20, and Fall (or Autumnal) equinox is usually September 22. Except at the equator, the equinoxes are the only dates with equal daylight and dark.
Detailed explanation-3: -The equinoxes happen in March (about March 21) and September (about September 23). These are the days when the Sun is exactly above the Equator, which makes day and night of equal length.
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