Question

What is the source of Oxygen?

Answer 1

Source of oxygen:

1. Photosynthesis is the process through which plants convert sunlight, water, and carbon dioxide into oxygen and sugar energy.
2. Photosynthesis continuously replenishes oxygen in the atmosphere.
3. Phytoplankton produces roughly half of the oxygen, with the remainder produced by other green plants.
4. Plants, for example, use oxygen to generate energy through cellular respiration and release carbon dioxide.
5. Plants use carbon dioxide, water, and sunlight to prepare food and produce oxygen, which is essential for all aerobic organisms.
6. In the light reaction of photosynthesis, oxygen is produced by the photolysis of water.