Beena, Shalu and Navpreet wanted to find out who among them had the bi – McqOptions

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1.	Beena, Shalu and Navpreet wanted to find out who among them had the biggest lung capacity. They decided to blow into a balloon with one breath and see how big it will become. Which of the following factors they must keep the same to make the test a fair one?1. Colour and design pattern of the balloon2. Size and shape of the balloon3. When to breathe in forcibly before blowing4. Material, balloon is made of
A.	1 and 2 only
B.	2 and 3 only
C.	1, 3 and 4 only
D.	2, 3 and 4 only
Answer» E.

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