Final answer:
The carbon cycle involves photosynthesis by plants which fixes atmospheric CO2 into organic compounds. When organic material burns, the carbon is released as CO2 into the atmosphere, releasing stored energy.
Step-by-step explanation:
Understanding the Process of Burning Organic Materials in the Carbon Cycle
The carbon cycle is a complex process where carbon is exchanged between the atmosphere, organisms, the earth, and the ocean. The steps that describe the burning of organic materials to release chemical energy involve several processes. Initially, photosynthesis by plants removes carbon dioxide (CO2) from the atmosphere, converting it into organic carbon compounds like glucose. Consumers, such as animals, eat these plants, transferring the carbon through the food chain. When organic material is burned, which also includes fossil fuels, carbon is released back into the atmosphere in the form of CO2. This is a decomposition process that is intensified by human activities, such as deforestation, which reduces the carbon absorption capacity of trees, contributing significantly to climate change.
Specifically, when organic materials burn, the reaction with oxygen breaks down the complex organic molecules, releasing stored energy, CO2, and water. This is represented by the equation for the metabolism of sugar:
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy