The document discusses various soil science concepts: 1. The upper limit of available water for plants is the field capacity of soil. 2. Soils with high buffering capacity require less lime to increase pH. 3. Sedimentary rocks were formed from the weathering of rocks exposed at the Earth's surface. 4. A soil monolith is a recreated soil profile mounted for observation to display the natural arrangement of a soil sample. 5. The cation exchange capacity refers to a soil's ability to absorb and exchange negatively charged ions.