By: Joey, Avery, Laela and Dana

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Presentation transcript:

By: Joey, Avery, Laela and Dana Carbon Cycle By: Joey, Avery, Laela and Dana

Vocabulary to know Definition Of: Source- Any process that releases more of the nutrient than it absorbs. Sink- The opposite so any process that absorbs or stores more of the nutrient than it releases.

2 processes that allow carbon to move from the atmosphere to the biosphere and back Cellular Respiration-is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products(carbon). Photosynthesis- is the process by which plants use the energy from sunlight to produce glucose from carbon dioxide and water. This glucose can be converted into pyruvate which releases adenosine triphosphate (ATP) by cellular respiration. Oxygen is also formed.

Humans Adding to Carbon Dioxide in the atmosphere Burning trees Burning Coal Burning Oil Burning Natural Gas

The effects of excess carbon in the carbon cycle Melting Surface Ice- Warmer temperatures are causing sea ice to melt Melting Land Ice- Warmer temperatures are melting glaciers Rising Sea level- Melting land ice is linked to rising sea level Changing Ocean Chemistry- Oceans warm sea water absorbs more carbon dioxide Changing Ecosystems- Changing in temperature, ocean chemistry and sea level altering global ecosystems Melting surface ice Changing ocean chemistry Melting land ice Rising sea level Changing ecosystems

How the Cycle works Carbon enters the atmosphere as carbon dioxide from respiration and combustion. Carbon dioxide is absorbed by producers to make carbohydrates in photosynthesis. Animals feed on the plant passing the carbon compounds along the food chain. Most of the carbon they consume is exhaled as carbon dioxide formed during respiration. The animals and plants eventually die. The dead organisms are eaten by decomposers and the carbon in their bodies is returned to the atmosphere as carbon dioxide. In some conditions decomposition is blocked. The plant and animal material may then be available as fossil fuel in the future for combustion.

http://www.bbc.co.uk/schools/gcsebitesize/science/add_gateway_pre_2011/greenworld/recyclingrev1.shtml

Thank YOu