Question

in the illustrated cycle, which process connects atmospheric co2 to plants and algae? fossilization decomposition combustion photosynthesis

Explanation:

Photosynthesis is the process by which plants and algae use sunlight, water, and carbon dioxide ($CO_2$) to produce glucose and oxygen. In this process, atmospheric $CO_2$ is taken in by plants and algae and converted into organic compounds. Fossilization is the process of remains becoming fossils, decomposition is the breakdown of organic matter, and combustion is the burning of substances (which releases $CO_2$ rather than taking it in from the atmosphere for plants/algae).

Answer:

Photosynthesis