1.

_Gobar gas constitutes mainly of$?

A. CH‚ÇÑ & CO‚ÇÇ
B. CO & CO‚ÇÇ
C. CH‚ÇÑ & N‚ÇÇ
D. CO & N‚ÇÇ
Answer» B. CO & CO‚Äö√á√á


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