The significance of the carbon cycle in ecosystems lies in its role in regulating the flow of carbon through the environment. Carbon is a fundamental building block of life, and the carbon cycle involves processes such as photosynthesis, respiration, and decomposition. Through these processes, carbon is exchanged between the atmosphere, terrestrial biosphere, and oceans. The carbon cycle helps maintain ecological balance and plays a crucial part in climate regulation. Disruptions to this cycle, such as increased CO2 emissions from human activities, can have severe consequences for the environment and biodiversity.