Biosphere: humans, Plants, Aquatic creatures, land animals, insects, Fungi, Bacteria, Invertebrates, Atmosphere: oxygen, carbon dioxide, clouds, wind, oxygen 20%, Nitrogen 80%, Geosphere: mountain, rocks, molten rock, dirt/soil, rock cycle, Hydrosphere: ocean, river, lake, pond,

Earth Systems: Hydrosphere, Atmosphere, Geosphere, Biosphere

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