3. Identify the natural cycle that is shown in the diagram. Then, for each box in the diagram, write one or two sentences explaining the labeled process as it relates to this cycle.

the oxygen/carbondioxide cycle

Explanation:

decay creates carbon-dioxide, and plants does both cellular respiration and photosynthesis since plants are still alive. and there is oxygen and carbon-dioxide in rocks. basically the living mostly use cellular respiration and photosynthesis and non-living (the ocean and factory) produce oxygen and carbon-dioxide

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air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.