Home / Everyday Science MCQs / Human beings use _______ liters of pure oxygen per day.

Human beings use _______ liters of pure oxygen per day.

A. 550

B. 2500
C. 1,050
D. 10,000

Human beings use _______ liters of pure oxygen per day. | 550 | CSS, PMS, PPSC, FPSC, KPPSC, SPSC, ISSB and NTS Past Papers | Pakistan's Largest Online Past Papers Database

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