Many organisms play a role in returning carbon to the atmosphere, mainly through the process of respiration, combustion, and decomposition. Here's a breakdown of these organisms and processes:

Role of Decomposers in Maintaining Nutrient Supply:

Decomposers play a pivotal role in nutrient cycling. They are primarily responsible for breaking down dead organisms and waste products. Here's why they are essential:

Dr Tanzir Islam Britto thank you for your contribution to the discussion

Plants absorb carbon from the environment in photosynthesis and return it in respiration. Animals obtain their carbon by eating plants; they release carbon in respiration. Microorganisms return carbon to the environment when they decompose dead plants and animals. Plants and the soil then release carbon dioxide when they decay. Other organisms also release carbon dioxide as they live and die. For example, animals exhale carbon dioxide when they breathe and release carbon dioxide when they decompose. Decomposers return carbon compounds to the soil. Decomposers use carbon to make food molecules. Decomposers release carbon dioxide into the air as waste. Decomposers break down the remains of dead plants and animals. Natural sources of carbon dioxide include most animals, which exhale carbon dioxide as a waste product. Human activities that lead to carbon dioxide emissions come primarily from energy production, including burning coal, oil, or natural gas. Carbon dioxide is released into the atmosphere during the respiration of producers (green plants) and consumers (animals) Carbon dioxide is released during the decomposition of organic compounds of dead bodies. Phytoplankton is the main reason the ocean is one of the biggest carbon sinks. These microscopic marine algae and bacteria play a huge role in the world's carbon cycle - absorbing about as much carbon as all the plants and trees on land combined. Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned. Decomposers return carbon back to the atmosphere by decomposing dead matter. This is through cellular respiration. Some areas on earth can speed up decomposition. The role of decomposers in the ecosystem is to recycle nutrients back into the soil, making them available to other organisms. They break down dead organic matter and release nutrients such as nitrogen, phosphorus, and carbon back into the soil, where they can be absorbed by plants and other organisms. Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers. Decomposers play a vital role in soil replenishment. Decomposers decompose biodegradable and organic wastes into and simple organic or inorganic substances. Because of this decomposition the soil gets replenished. They decompose wastes and provide nutrients and minerals to the soil for replenishment. Most decomposers are microscopic organisms, including protozoa and bacteria. Other decomposers are big enough to see without a microscope. They include fungi along with invertebrate organisms sometimes called detritivores, which include earthworms, termites, and millipedes.