UPSC Combined Defense Service Exam 2012 GK Solved Papers

Union Public Service Commission

Combined Defence Services Exam 2012General Knowledge Solved Paper



1. Over 90% of the world’s biomass is in–
(A) tropical rain forests (B) freshwater wetlands
(C) topsoils (D) oceans
Ans : (D)

2. Which one of the following is a source of methane emission into the
atmosphere ?
(A) Automobile exhaust fume (B) Industrial chimney
(C) Mining (D) Wetland
Ans