Carbon enters the atmosphere as CO2CO2 is absorbed by autotrophs such as green PLANTS
Carbon enters the atmosphere as CO2CO2 is absorbed by autotrophs such as green plantsAnimals consume plants, THEREBY, incorporating carbon into their system
Carbon enters the atmosphere as CO2CO2 is absorbed by autotrophs such as green plantsAnimals consume plants, thereby, incorporating carbon into their systemAnimals and plants DIE, their bodies decompose and carbon is reabsorbed BACK into the atmosphere.