\[C{{O}_{2}}\] content of atmosphere has increased in the last 150 yea – McqOptions

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1.	\[C{{O}_{2}}\] content of atmosphere has increased in the last 150 years from [AIIMS 1997]
A.	25 to 35 ppm
B.	270 to 340 ppm
C.	0.027 to 0.34 ppm
D.	0.2 to 0.3 ppm
Answer» C. 0.027 to 0.34 ppm

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