Sulfur dioxide, carbon monoxide and oxides of nitrogen are gaseous pollutants found in the air. Which pollutants contribute to acid rain?
A.
carbon monoxide and sulfur dioxide
B.
oxides of nitrogen and sulfur dioxide
C.
oxides of nitrogen only
D.
sulfur dioxide only
Exam No：0620_s25_qp_12 Year：2025 Question No：31
Answer:
B
Knowledge points:
2.4.1. Describe the formation of positive ions, known as cations, and negative ions, known as anions
Solution:
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