Post category:Everyday Science Mcqs Post comments:0 Comments The source of oxygen in photosynthesis is _____. A. water B. salts C. minerals D. glucose Read more articles Previous PostThe gas, commonly known as “laughing gas”, is ____. Next PostThe instrument used to measure wind speed is____. You Might Also Like The first chemical explosive, Gunpowder, is a mixture of_____. March 10, 2022 The Carbon Dioxide in the atmosphere, by volume, is_______. June 19, 2022 The SI unit of electric current is? March 10, 2022 A Longsightedness can be corrected by using the _____ lens. May 23, 2021 The total number of Cingula in each dentition is_______________? June 11, 2021 Group of stars is called? June 30, 2020 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