Question

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

Explanation:

• The biosphere includes living organisms and organic matter; the geosphere includes Earth's solid layers like soil and rock.

1. Plant decomposition on the forest floor: Organic carbon from plants (biosphere) breaks down and becomes part of soil (geosphere), moving directly between the two.
2. Volcano eruption: Moves carbon from geosphere to atmosphere, not biosphere to geosphere.
3. Rock weathering: Moves carbon from geosphere to hydrosphere/atmosphere, not biosphere to geosphere.
4. Plant photosynthesis: Moves carbon from atmosphere to biosphere, not biosphere to geosphere.

Answer:

the decomposition of plants on the forest floor