Question

a.
Is it easier for the earthworm to move on smooth or rough surface? Justify your answer with
a suitable reason.
b. How are the bones of birds adapted well for flying?​

Answer 1

Answer:

Earthworms will move faster on a rough surface. This is because of higher traction on rough surfaces which helps their body to grip the surface. It becomes slower on a smooth surface because it's body does not get any grip with the Surface. On a smooth glass table, earthworm moves the slowest among all.

Explanation:

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Answer 2

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Explanation:

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