Multiple choice

The decomposition of water into hydrogen and oxygen by light energy is called

  1. photosynthesis

  2. photoreceptors

  3. photolysis

  4. photons

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

Photolysis is the light-driven decomposition of water molecules into hydrogen and oxygen, a key process in photosynthesis where light energy breaks the chemical bonds in water.