Oksijensiz bütün hayvanlar uzun zaman önce gözden kaybolurdu.
- Without oxygen, all animals would have disappeared long ago.
Su, oksijen ve hidrojenden oluşur.
- Water comprises of oxygen and hydrogen.
A water molecule has two hydrogen atoms and one oxygen atom.
- Ein Wassermolekül besteht aus zwei Wasserstoffatomen und einem Sauerstoffatom.
Oxygen and hydrogen make water.
- Wasser ist aus Wasserstoff und Sauerstoff zusammengesetzt.