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Why does a balloon filled with hydrogen gas rise in the air?a)Hydrogen gas is lighter than air.b)Hydrogen gas is denser than air.c)The balloon is made of a special material.d)The balloon is pushed upwards by a fan.Correct answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Why does a balloon filled with hydrogen gas rise in the air?a)Hydrogen gas is lighter than air.b)Hydrogen gas is denser than air.c)The balloon is made of a special material.d)The balloon is pushed upwards by a fan.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Why does a balloon filled with hydrogen gas rise in the air?a)Hydrogen gas is lighter than air.b)Hydrogen gas is denser than air.c)The balloon is made of a special material.d)The balloon is pushed upwards by a fan.Correct answer is option 'A'. Can you explain this answer?.

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