Variations in the length of day time and night time from season to season are due to _______.

the Earth's rotation on its axis

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the Earth's revolution round the Sun in an elliptical manner

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latitudinal position of the place

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revolution of the Earth on a tilted axis

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Solution

The correct option is C revolution of the Earth on a tilted axis
Variations in the length of day and night time from season to season on the earth's surface is due to the axial tilt of earth's rotation axis with respect to its orbital axis. This causes variations in the intensity of Sun's rays falling at a given place over the span of a year leading to variations in day and night time.

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Question 6

The change in seasons on the earth occurs because

(a) the distance between the earth and the sun is not constant.
(b) the axis of rotation of the earth is parallel to the plane of its orbit.
(c) the axis of rotation of the earth is perpendicular to the plane of its orbit.
(d) the axis of rotation of the earth is tilted with respect to the plane of its orbit.

Q. State whether the given statement is True or False :
The seasonal changes occur due to the revolution of the earth in an elliptical orbit around the sun.

Q. Which of the following phenomenon happens due to the revolution of earth around the sun.
A. Season
B. Year
C. Months
D. Days

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Q. 1. The earth rotates on its axis from ___________ to ____________
2. The axis of the earth is inclined at an angle of ___________
3. The variation in the length of days and nights is due to _____________ on the earth's axis.
4. The earth's orbit around the sun is __________ in shape.

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