Human Reproduction Question 249
Question: PAN (Peroxyacetyl nitrate) is an important constituent of photochemical smog. It is a [CBSE PMT 1999; BHU 2005]
Options:
A) Primary pollutant
B) Secondary pollutant
C) Natural pollutant
D) Corrollary pollutant
Show Answer
Answer:
Correct Answer: B
Solution:
Pollutant formed by chemical interaction of primary pollutants with atmospheric gas and moisture, often catalysed by sunlight are called secondary pollutants.
PAN is one such substance.
BETA
