The emission of what causes acid rain?
H2O smoke from food Hydrogen coal SO2 oil CFCs Cars
A B C D E F G H
It's sulfur dioxide (SO2).
the emission of SO2 causes acid rain
The emission of what causes acid rain? (A) H2O (B) smoke from food (C) Hydrogen (D) coal (E) SO2 (F) oil (G) CFCs (H) Cars