State whether the following statement is true or false.

Birds, while flying high, do not cast their shadow on earth because high-flying birds are at much greater distance from the ground.

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True

False

answer is A.

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Detailed Solution

The given statement is true.
Concept: The concept of shadow formation and its impact on the intensity with the distance of the object casting the shadow can be used to solve the aforementioned issue. In addition, the inverse relationship of the intensity of shadow with changing distance of the object posing the obstacle needs to be studied.
The sun's light beams come into contact with the birds as they soar through the air. The bird's flight route is obstructed by these light beams, and as a result, a shadow is cast on the ground. Now, the size of the shadow is a function of how far the birds are from the ground. The shadow's intensity decreases with increasing distance from the earth. And the shadow will continue to be darker the closer the distance. As a result of their larger distance from the ground, high-flying birds are unable to produce shadows that are more intense and can thus be seen on Earth.
Hence, the given statement is true.

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