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Home Q & A Board Science-Related Homework Help Physics Astronomy
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phoebe.lou phoebe.lou
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5 months ago

Why does the Gregorian calendar use leap years?



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because the tropical year is about 365. 25 days long



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because the sidereal year is longer than the tropical year



▸

because Earth's axis is precessing



▸

because Earth's rotation is slowing down

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ASTRO

ASTRO


Edition: 3rd
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chevy87chevy87
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5 months ago
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phoebe.lou Author
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Thanks for your help!!
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