The Carbon Cycle Carbon reservoir: – Any place where carbon is stored and not released. i.e. – Living trees – the carbon is stored as carbohydrates. – Oceans – dissolved carbon from the atmosphere. – Shells of marine organisms as CaCo 3. – Limestone as CaCo 3.
How the Carbon Cycle Works How is some of this atmospheric carbon returned to the oceans? – By: Weathering of rocks like limestone. Dissolves as CO 2.
How the Carbon Cycle Works How does some of this carbon on the surface of the earth become buried deep beneath the earth? – By: Dead plants and animals decompose and become covered in layers of earth. Carbon compounds are compacted and turned into fossil fuels.
How the Carbon Cycle Works How does the carbon stored in the depths of oceans and lakes become buried deep beneath these bodies of water? – By: Aquatic plants and animals die and fall to the bottom to be buried in sediments (sedimentation).