Motions of the Earth

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                                            Image result for earth rotation

Rotation – when planet revolve around on its axis is called rotation
Revolution - when planet revolve around the sun is called revolution
Earth revolve on elliptical orbit
Earth takes 365 day and 6 hour to complete a revolution to the sun and after 4 year one leap year.
The longest day and the shortest night is occur on 21 June in north hemisphere
22 December southern hemisphere carry longest day and reverse on southern hemisphere
On 21 march and September 23 direct ray fall on the equator at this position neither the pole tilted towards the sun the whole earth experiences equal day and night this is called equinox




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