Post category:Everyday Science Mcqs / Physics Mcqs Post comments:0 Comments Radioactivity was discovered by: A. Kelvin B. Thomson C. Rutherford D. Bacquerel Read more articles Previous PostThe density of water is: Next PostA device which converts chemical energy into electrical energy is called: You Might Also Like Which is the largest planet of Solar System? May 9, 2020 The lifespan of Red Blood Cells is ______ days. March 9, 2022 In a very low temperature which from the following will freeze at last? May 24, 2021 The Building block Of the universe is …. February 18, 2022 Acid rain is mainly caused by emissions of _____ in the atmosphere. March 10, 2022 Pressure at depth in fluid _________? September 6, 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