The oxygen cycle involves the movement of oxygen between the atmosphere, biosphere, and lithosphere, essential for life on Earth.
Plants, algae, and cyanobacteria produce oxygen via photosynthesis, converting CO₂ and sunlight into glucose and O₂, replenishing atmospheric oxygen.
Aerobic organisms use oxygen in cellular respiration, producing CO₂ and water, which plants then use in photosynthesis, continuing the cycle.
Decomposition
Decomposers break down dead matter, consuming oxygen and releasing CO₂, recycling nutrients and maintaining the oxygen cycle.
Deforestation and fossil fuel burning increase CO₂ and reduce oxygen production, disrupting the oxygen cycle and causing ecological imbalance.
Phytoplankton in water produce oxygen through photosynthesis, vital for aquatic life. Learn more at eTutorWorld.com.