HomeQues : Which of these substances is composed of only two elements – hydrogen and oxygen? Ques : Which of these substances is composed of only two elements – hydrogen and oxygen? kbcliv September 3, 2018September 3, 2018 Ques : Which of these substances is composed of only two elements – hydrogen and oxygen? A. WaterB. SaltC. SugarD. BloodAns : A. Water Share this:FacebookXLike this:Like Loading...Discover more from Kaun Banega Crorepati InformationSubscribe to get the latest posts to your email. Type your email… Subscribe