WBCS Exam Main Compulsory Question Paper - 2015 [General Studies - II]
WBCS Main Examination Paper - IV (General Studies-II) - 2015
avimanyu pramanik
Wed, 11/30/2016 - 17:27
1. The following term is not involved in air pollution.
(A) SMOG (B) MMD (C) DO (D) VC
2. Mufflers are commonly used to prevent the
(A) Radiation pollution (B) Noise pollution (C) Air pollution (D) Thermal pollution
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