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  1. Carbon cycle | Definition, Steps, Importance, Diagram, & Facts

    5 days ago · Carbon cycle, in biology, circulation of carbon in various forms through nature. Carbon is a constituent of all organic …

  2. Carbon | Facts, Uses, & Properties | Britannica

    Sep 18, 2026 · Carbon, chemical element that forms more compounds than all the other elements combined. Carbon is widely …

  3. Carbon monoxide poisoning | Symptoms, Treatment, Prevention

    Sep 9, 2026 · Carbon monoxide poisoning, often fatal condition resulting from inhalation of carbon monoxide, frequently occurring in …

  4. Encyclopedia Britannica | Britannica

    Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, …

  5. Photosynthesis | Definition, Formula, Process, Diagram, Reactants ...

    Sep 18, 2026 · Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical …

  6. Biosphere - Carbon Cycle, Ecosystems, Atmosphere | Britannica

    Aug 7, 2026 · Biosphere - Carbon Cycle, Ecosystems, Atmosphere: Life is built on the conversion of carbon dioxide into the carbon …

  7. Blue-green algae | Microorganisms, Photosynthesis & Ecology

    Sep 25, 2026 · Blue-green algae, any of a large, heterogeneous group of prokaryotic, principally photosynthetic organisms. …

  8. Carbon sequestration | Definition, Methods, & Climate Change

    Carbon sequestration, the long-term storage of carbon in plants, soils, geologic formations, and the ocean. In response to concerns …

  9. Photosynthesis - General characteristics | Britannica

    Sep 18, 2026 · Photosynthesis - General characteristics: In chemical terms photosynthesis is a light-energized oxidation–reduction …

  10. Iodine | Chemical Properties, Uses, & Applications | Britannica

    Aug 15, 2026 · Iodine forms a blue complex with starch, and this color test is used to detect small amounts of iodine. The electron …