Multiple choice

What is water made up of?

  1. Nitrogen and Oxygen

  2. Carbon and Oxygen

  3. Oxygen and Hydrogen

  4. Hydrogen and Nitrogen

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Water has the chemical formula H2O, which means it consists of two hydrogen atoms bonded to one oxygen atom. Therefore, it is made up of oxygen and hydrogen.