The most abundant element in earth curst is? A. Hydrogen B. Oxygen C. Cobalt D. Mercury Right Answer: B. Oxygen Share : December 12, 2017 Hassan Ali General Knowledge Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -The world’s largest land animal is?The currency of Qatar is?The headquarter of Green Peace International is located in?