Which of the following is NOT a purpose of compacting soil?

Compacting soil serves several important purposes in construction and engineering. Increasing stability ensures that the soil can support structures and reduces the risk of settling or shifting over time. Decreasing permeability helps to control water movement through the soil, which can prevent flooding and erosion by managing the moisture content effectively. Improving load-bearing capacity means that compacted soil can support heavier loads without failing, making it crucial for the foundation of buildings and other structures.

The choice of decreasing the resistance to erosion contradicts the fundamental goals of soil compaction. In fact, compacting soil typically enhances its resistance to erosion by making it denser and reducing the spaces between soil particles. This density helps to hold the soil together, making it less susceptible to being washed away by water or blown away by wind. Therefore, the assertion that decreasing resistance to erosion is a purpose of compacting soil is not aligned with the objectives of this important process.