Question

Why are days and nights equal on 21st March at all places on the earth? Explain.​

Answer 1

Answer:

here is the answer

Explanation:

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Answer 2

Answer:

On 21st March and September 23rd, direct rays of the sun fall on the equator. At this position, neither of the poles is tilted towards the sun; so, the whole earth experiences equal days and equal nights. This is called an equinox.