Answer:
Carbon dioxide returns to the atmosphere through various processes:
1. Decomposition: When organic matter, such as dead plants and animals, decomposes, carbon dioxide is released back into the atmosphere. Microorganisms break down the organic matter and release carbon dioxide as a byproduct.
2. Photosynthesis: Plants and other photosynthetic organisms take in carbon dioxide from the atmosphere during the process of photosynthesis. They use this carbon dioxide, along with sunlight and water, to produce glucose (a sugar) and oxygen. The oxygen is released back into the atmosphere, while the glucose is stored in the plant's tissues.
3. Combustion and Cellular Respiration: Combustion is the process of burning fossil fuels like coal, oil, and natural gas. When these fuels are burned, carbon dioxide is released into the atmosphere. Similarly, during cellular respiration in animals and plants, glucose is broken down to produce energy, and carbon dioxide is released as a waste product.
4. Consumption: Animals obtain carbon by consuming plants or other animals. When they digest their food, carbon compounds are broken down, releasing carbon dioxide as a byproduct. This carbon dioxide is then released back into the atmosphere through the animal's respiration.
These processes play a crucial role in the carbon cycle, where carbon moves between the atmosphere, plants, animals, and the Earth's surface. It is important to note that human activities, such as burning fossil fuels and deforestation, have significantly increased the amount of carbon dioxide in the atmosphere, leading to climate change.
Step-by-step explanation:
i have aready explained in my awnser