Question

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What is an equinox? why is it works
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Answer 1

Answer:

An equinox is an event in which a planet's subsolar point passes through its Equator. The equinoxes are the only time when both the Northern and Southern Hemisphere experience roughly equal amounts of daytime and nighttime. An equinox is an event in which a planet's subsolar point passes through its Equator.

Explanation:

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Answer 2

Answer:

One of the two times in the year (around 20 March and 22 September) when the sun is above the imagined line round the centre of the earth (equator) and day and night are of equal length.

Equinoxes occur when the axis of rotation of the earth (i.e. the line form the N to S poles) is exactly parallel to the direction of motion of the earth around the sun. This happens on just two days of the year, the spring and autumn equinoxes.