Concept:Weathering slowly disintegrates and decomposes rocks, and this process is useful to agriculture because it provides the mineral particles and nutrients that make soil productive.
Explanation:Rocks at the earth's surface are acted on by temperature changes, moisture, wind, and living organisms.
Physical weathering cracks the rocks into fragments, while chemical weathering decomposes rock minerals.
During decomposition, important plant nutrients such as potassium, calcium, and magnesium are released.
These nutrients enter the soil and become available to crops.
Weathering also produces the fine mineral particles that form the base of agricultural soil.
Therefore, the option that combines rock decomposition with nutrient release best explains weathering and its importance to agriculture.
Answer:C. Rock weathering is the process of rocks decomposing and releasing nutrients into the soil.