Carbon and Oxygen Cycle

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmos...

Photosynthesis - green plants/trees take in carbon dioxide and water using the chlorophyll In their leaves and...

Respiration                     - animals take in simple sugars and oxygen and release carbon dioxide, water and energy.      

Combustion - the sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat and...

Decmposition                       -when an animal dies, all the carbon, oxygen, nitrogen, calcium etc. return to the soil and air during d...

Almost all living things need oxygen.  They use this oxygen during the process of creating energy in living cells.   Just as water moves...

Oxygen  in water is known as dissolved oxygen   or DO.  In nature, oxygen enters water when water runs over rocks and creates tremendous amo...