CTET 2 Math and Science 1 Jan 2022 Paper

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Question : 78 of 150

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What is the correct answer to explain the mechanism of inhalation during breathing in human beings?

Air moves in, Ribs move in and Diaphragm moves down
Air moves out, Ribs move out and Diaphragm moves up
Air moves out, Ribs move out and Diaphragm moves down
Air moves in, Ribs move out and Diaphragm moves down

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