A. CH4
B. He
C. N2
D. None of These
Submitted by: Abdul
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
A. CH4
B. He
C. N2
D. None of These
Submitted by: Abdul
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