Photosynthesis, the most important single chemical reaction, brings together water, light, chlorophyll, and carbon dioxide, processing annually the hundreds of trillions of tons of carbon dioxide, converting them to oxygen as part of the process of making food and fuel.
(Photosynthesis; brings; together; water, light, chlorophyll, and carbon dioxide) (them; to oxygen; as part of the process of making food and fuel)
Photosynthesis them
brings to oxygen
together water, light, chlorophyll, and carbon dioxide
as part of the process of making food and fuel