These processes, pass the same atoms .Imagine, for a moment, that you are a carbon atom on a molecule of carbon dioxide that has just been shot out of a volcano. The leaf of a blueberry bush in a nearby mountain range absorbs you during photosynthesis. You become part of a carbohydrate molecule in a blueberry. A caribou eats the fruit, and within a few hours, you pass out of the animal’s body. You are soon swallowed by a dung beetle, which gets eaten by a hungry shrew. You are combined into the body tissues of the shrew, which is then eaten by an owl. You are released back into the atmosphere when the owl exhales carbon dioxide, dissolve in a drop of rainwater, and flow through a river into the ocean.
This could just be part of the never-ending cycle of carbon atom through the biosphere.Carbon atoms in your body may once have been part of a rock on the ocean floor, the tail of a dinosaur, or even part of a historical figure such as