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Objects at rest on the earth's surface m...

Objects at rest on the earth's surface move in circular paths with a period of `24 h`. Are they in 'orbit' in the sense that an earth satellite is in orbit? Explain.

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No, they are not in orbit like an artificial satellite provides the necessary centripetal force, but for objects at rest on the earth's surface, the whole of the gravitational pull (i.e., their weights) does not provide the necessary centripetal force: only a small fraction provides the necassary centripetal force. In short, bodies in orbit are weightless but bodies on the earth at rest are not weightless.
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