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Arihant General Studies question with answer

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Question #119,988
Arihant General Studies English MCQ IAS (Pre) 2008

Q.Consider the following statements in respect of a jet engine and a rocket. I. A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space. II. A rocket carries its own supply of oxygen in the gas form, and fuel. Which of the statements given above is/are correct?