How are photosynthisis and cellular respiration a cycle in nature?

Photosynthesis and cellular respiration are interconnected processes that form a cycle in nature. During photosynthesis, plants convert sunlight, carbon dioxide, and water into glucose and oxygen, which are essential for their growth. Cellular respiration occurs in animals and plants, where glucose and oxygen are used to produce energy, releasing carbon dioxide and water as byproducts. This cycle maintains the balance of oxygen and carbon dioxide in the atmosphere, supporting life on Earth.