Biogeochemical Cycles Kev Bennett

The Water cycle

The Water cycle is made up of many things. Things such as Evaporation, condensation, precipitation, transpiration, run off, and groundwater. The sun drives the water cycle. It heats water in the oceans. Water then evaporates as vapor into the air. Precipitation falls back into oceans or onto land where it then flows over the ground making surface runoff.

The Carbon Cycle

The carbon cycle is a process in where carbon travels from the atmosphere into organisms and the Earth and then back into the atmosphere. Plants take carbon dioxide from the air and use it to make food. Animals eat the food and carbon is stored in their bodies and they release it as C02 through respiration.

The nitrogen cycle

the nitrogen process has a chemical called ammonia that's also known as NH3. Ammonia is then used as a fuel by bacteria that converts it into nitrate or NO3. Plants then use to synthesize proteins. When plants die the nutrients are consumed by microorganisms in the soil.

phosphorous cycle

The phosphorous cycle happens through rocks, water, soil and sediments and organisms. Over time rain and weathering cause the rocks to release phosphate and other minerals. This inorganic phosphate is then distributed in soils and water.


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