1. description of each transition or step of the cycle that were given in the lesson. here are a list of the steps to include: a. extraction b. combustion c. respiration d. photosynthesis e. diffusion f. decomposition g. sedimentation

Definition of Extraction. Extractions are a way to separate a desired substance when it is mixed with others. The mixture is brought into contact with a solvent in which the substance of interest is soluble, but the other substances present are insoluble.

combustion. The definition of combustion means burning, or a chemical change that produces heat and light. An example of combustion is oxidation accompanied by heat and light.

the act of respiring; inhalation and exhalation of air; breathing. 2. Biology. the sum total of the physical and chemical processes in an organism by which oxygen is conveyed to tissues and cells, and the oxidation products, carbon dioxide and water, are given off.

Photosynthesis is the process by which plants and other things make food. It is a chemical process that uses sunlight to turn carbon dioxide into sugars the cell can use as energy. As well as plants, many kinds of algae, protists and bacteria use it to get food.

Medical Definition of diffusion. 1: the process whereby particles of liquids, gases, or solids intermingle as the result of their spontaneous movement caused by thermal agitation and in dissolved substances move from a region of higher to one of lower concentration.

decomposition-the state or process of rotting; decay.

Sedimentation is the tendency for particles in suspension to settle out of the fluid in which they are entrained and come to rest against a barrier. This is due to their motion through the fluid in response to the forces acting on them: these forces can be due to gravity, centrifugal acceleration, or electromagnetism.