lants contribute to mechanical and chemical weathering but inhibit erosion. • Select the answers below that are correct. There may be more than one correct answer. Decaying organic material releases H20 to sediments and soils, thus enhancing chemical weathering through oxidation. Plants promote mechanical weathering through root wedging. Plants promote mechanical weathering through frost wedging. In soils, plant roots act to hold soil particles together. Plant leaves do not protect soils from erosion by falling rain, thus enhancing erosive processes. Plant leaves protect soils from erosion by falling rain, thus slowing erosive processes. Decaying organic material releases CO2 to sediments and soils, thus enhancing chemical weathering through hydrolysis.
