The Oxygen Cycle

Key Stage 3 Science / Chemistry

Sample Question

Which
process is the largest contributor to atmospheric oxygen?

  • Photosynthesis
  • Photolysis
  • Combustion
  • Respiration
  • Chemical weathering

This is just one of our 151,668 study questions in Quipper School.

Quipper School UK Curriculum

Key Stage 3 Science

Topics