Post category:Everyday Science Mcqs Post comments:0 Comments The number of oscillations per second is called the_____. A. hertz B. waves C. pitch D. frequency Read more articles Previous PostThe first chemical explosive, Gunpowder, is a mixture of_____. Next PostSound waves from a loudspeaker are caused by_____. You Might Also Like The good sources of Vitamin-C are____. March 10, 2022 In Out Atmosphere Nitrogen Consist of February 17, 2022 The study of plant is called? February 2, 2022 How many known moons Jupiter has? July 3, 2020 Diamond is an allotropic form of ____. March 10, 2022 The SI unit of “pressure” is_________. 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