Post category:Everyday Science Mcqs / General Science & Ability MCQs / PMS MCQs / PPSC Past Paper Post comments:0 Comments The gas used in a refrigerator to cool water is___________? A. Nitrogen B. Carbon dioxide C. Methane D. Ammonia Read more articles Previous PostThe human blood is divided into__________ groups? Next PostThe primary colors of Pigment are________. You Might Also Like 1 light year = ? March 9, 2022 The guitar has ______ strings March 10, 2022 Where does ozone layer lie in the atmosphere? August 20, 2022 The longest day is found on _________ planet? June 19, 2020 How many stripes are on the United States of America’s (USA) flag? August 16, 2022 For proper formation of teeth, __________ is essential. June 19, 2022 Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Δ