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==== Formation of Seasons ====
===== Formation of Seasons =====
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The Earth and all other celestial bodies in the Solar System are constantly moving. Rotation, precession and revolution of Earth are directly responsible for seasonal variations in a year. The term ‘Earth Rotation’ refers to the spinning of our planet on its axis, with an equatorial speed of 1040 miles per hour (about 465 meter per second or slightly over 1675 km per hour). One rotation takes twenty-four hours (23.93 hour) and is called a mean solar day. The Earth’s rotation is responsible for the daily cycles of day and night. At any moment in time, one half of the Earth is in sunlight, while the other half is in darkness.
The Earth and all other celestial bodies in the Solar System are constantly moving. Rotation, precession and revolution of Earth are directly responsible for seasonal variations in a year. The term ‘Earth Rotation’ refers to the spinning of our planet on its axis, with an equatorial speed of 1040 miles per hour (about 465 meter per second or slightly over 1675 km per hour). One rotation takes twenty-four hours (23.93 hour) and is called a mean solar day. The Earth’s rotation is responsible for the daily cycles of day and night. At any moment in time, one half of the Earth is in sunlight, while the other half is in darkness.