Earth's Motion & Eclipses MCQs with Answers

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Day and night are formed due to the speed of rotation of the Earth on its axis, as the Earth completes one full rotation approximately every 24 hours.

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The earth revolves around the sun in an elliptical orbit, completing one revolution in approximately 365.25 days.

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The distance between Earth and Sun is smallest in the month of January.

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The minimum distance between the Sun and Earth occurs on January 4, a point known as perihelion.

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February is the only month that can lack a new Moon because it is shorter than the lunar synodic month of approximately 29.5 days.

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The Earth rotates around its axis, an imaginary line passing through the North and South Poles.

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February has 29 days in a leap year.

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The Solar year has 365 ¼ days, which is why a leap year of 366 days occurs every four years.

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The sun appears to move 15° west each hour due to Earth's rotation.

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Day and night are caused by the Earth's rotation around its axis, which takes approximately 24 hours to complete one full spin.