Oxygen
Yes, oxygen can be recycled. Oxygen is recycled every time by nature, the plants in take carbon dioxide that is released by animals and release oxygen.
The gas that plants and animals use, which is essential for respiration, is oxygen. Oxygen is produced during the process of photosynthesis in plants, where carbon dioxide is converted into glucose and oxygen using sunlight, water, and chlorophyll. This oxygen is then released into the atmosphere and utilized by both plants and animals for their metabolic processes.
Chlorophyll traps energy for photosynthesis and in photosynthesis oxygen is released that is used by animals for their respiration.
Animals breathe in oxygen in the air.
Oxygen is absorbed by the animal, and waste products are released.
Carbon dioxide is a waste for animals because it is expelled during the respiration process. Animals take in Oxygen, and once it is processed in their body, Carbon dioxide is released.
There is no oxygen. Animals need oxygen to breathe. Plus, no food or water.
oxygen
Animals don't release oxygen; we use oxygen. Plants release oxygen.
Animals do not use up all the oxygen in the atmosphere because plants produce oxygen. When they breathe, plants inhale carbon dioxide (which is what animals breathe out) and exhale oxygen (which is what animals breathe in).
The animals need the oxygen that plants release.