CO 2 在大气中含量不断增大是产生“温室效应”的主要原因。在自然界发生的下列反应中,不利于缓解“温室效应”的是
A.
CO 2 + H 2 O ═ H 2 CO 3
B.
6 n CO 2 + 5 n H 2 O (C 6 H 10 O 5 ) n (淀粉) + 6 n O 2 ↑
C.
CO 2 + CaCO 3 + H 2 O ═ Ca(HCO 3 ) 2
D.
CH 4 +2O 2 点燃 CO 2 + 2H 2 O
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