Which process involves carbon moving directly from the biosphere into the geosphere? (1 point) the photosynthesis of a plant the decomposition of plants on the forest floor the weathering of rocks by a river the eruption of a volcano

The decomposition of plants on the forest floor is the process that involves carbon moving directly from the biosphere into the geosphere. When plants die and decompose, microorganisms break down their organic matter, releasing carbon into the soil, which becomes part of the geosphere. When this carbon-rich material accumulates over time, it can transform into fossil fuels or become part of sedimentary rocks. This process is crucial for the carbon cycle, as it helps sequester carbon and regulate atmospheric CO2 levels, thereby influencing global climate patterns.