The tanks used by scuba divers are filled with air diluted with11.7%He

1.	The tanks used by scuba divers are filled with air diluted with11.7%He ,
Answer» ` 56.2% N_2 and 32.1 % O_2 ` ` 56.2 % O_2 and 32.1 % N_2 ` ` 50.2 % N_2 and 38.1 % O_2` ` 50.2 % O_2 and 38.1 % N_2` ANSWER :B

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