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Answer:

1.The sun's rays create the longest shadows in the morning and in the late afternoon or evening. It depends on the rotation only.

2.The length of the shadows decrease till noon as sun rises in the eastern horizon to noon time, when the sun is above your head.

3.The Earth's rotation causes the shadows to change throughout the day. The rotation of the Earth also causes day and night. The Earth's revolution causes slight changes in the length of these things because of its location in orbit.

Explanation:

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