B.A./B.COM. LL.B. (5 YEAR LAW / U.G. LAW) Panjab University Entrance Exam 2019 : MCQs and Answer Key

Practice Mode:
28.

Acid rain is caused by the pollution of environment by

A: Carbon dioxide and nitrogen
B: Carbon monoxide and carbon dioxide
C: Ozone and carbon dioxide
D: Nitrous oxide and sulphur dioxide

The answer is: D