Post category:General Science & Ability MCQs Post comments:0 Comments The main constituent of hemoglobin is_____. A. Chlorine B. Iron C. Calcium D. None of these Read more articles Previous PostWhat is the main component of bones and teeth? Next PostThe main function of the kidney is_____. You Might Also Like The Organism Which Convert Milk Into Yogurt And Sugar Syrup Into Alcohol. May 6, 2022 Milk contains water_____________. June 19, 2022 CSS Past Papers MCQss with answers pdf 2021 August 1, 2021 Bacteria Are Very ______Organisms. May 6, 2022 1 nanometer = ? May 24, 2021 Which of the following glands secrete tears? March 12, 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