Have you ever observed a balloon seller filling a large number of balloons from a single cylinder of gas? Enquire from him how many balloons is he able to fill from one cylinder. Ask him which gas does he have in the cylinder.

NCERT Class 9th Science Ch 1 Matter in Our Surroundings

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Answers

2016-04-19T14:36:47+05:30
2016-04-19T14:42:52+05:30
The cylinder has the gas helium.

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