1. Organic matter refers to substances from living things.
有机物是指来自生命的物质。
2. Organic matter in soil helps plants grow.
土壤中的有机物有助于植物生长。
3. Organic food contains no artificial additives.
有机食品不含人工添加剂。
4. Organic chemistry studies carbon compounds.
有机化学研究的是碳化合物。
5. Organic matter releases nutrients during decomposition.
有机物在分解过程中会释放养分。