Answer:
(a)The tilting of earth on its axis by 23V2 is known as the inclinations of the earth's axis.
(b)The earth moves on its axis in 24 hours. This movement of the earth is called rotation. It causes days and nights.The earth also makes a complete circle round the sun in days. This movement of the earth is called revolution. It is responsible for the change in season.
Rotation Revolution
(i) The continuous spining of (i) The movement of earth round
earth on its own axis is called the sun is called revolution.
rotation,
(ii) It takes twenty-four hours to (ii) Earth takes 365 1/4 days to make a
earth to complete one rotation complete round of the sun while
on its axis. rotating along its axis.
(iii) The rotation of earth causes (iii) It causes cycle of the seasons.
day and night.
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