MPSC PYQScienceAcid, Base and Saltenglish
Which of the following factors are responsible for the greenhouse effect ? (a) Carbon dioxide. (b) Methane. (c) Nitrogen oxide. (d) Ammonia Answer Options :
A.a, b, c
B.b, c, d
C.a, b, d
D.a, b, c, d
Correct answer: A