

MCQOPTIONS
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1. |
Normal‖ rainfall is slightly acidic (and a pH of 5.6 has been assigned which might be somewhere near 5 ) because of the presence of _______? |
A. | Nitric Oxide |
B. | Sulphuric Acid |
C. | Nitric Acid |
D. | Carbonic Acid |
Answer» E. | |