Netmedicos.com

Turning Dreams of Medicos Into Reality...!!!
Mcqs MBBS Exams India
Welcome, GuestLogin / Register
Home >> Exams >> UPSC-CMS >> UPSC CMS 2013 >> Mcq Of The Day

UPSC CMS 2013 Mcq Of The Day

Question: Which one of the following is a secondary pollutant ?
A) Benzene
B) Nitrogen oxide
C) Ozone
D) Sulphur dioxide