PPSC Past Paper Assistant Labour and Human Resource 2019 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsThe most serious environmental effect posted by hazardous wastes is?A. Air pollution B. Contamination of Ground water C. Increased use of land for landfills D. Destruction of Habitat The World’s largest Island by area is?What is the antonym of ‘Incongruous’?
