Which term corresponds to soil erosion prevention methods?

• A. Soil Conservation Methods
• B. Nitrate Standards
• C. Oxygen-Demanding Wastes
• D. Plant Nutrients

Answer: (A)

Preventing soil erosion is addressed through soil conservation methods. These are practices that protect the soil surface and maintain soil structure, reducing runoff and detachment of soil particles. Examples include keeping the ground covered with vegetation or residues, contour farming and terracing on slopes, mulching, windbreaks, and reduced tillage. This term best fits because it specifically denotes actions aimed at conserving soil by preventing erosion, whereas nitrate standards relate to water quality limits for nitrates, oxygen-demanding wastes describe pollutants that consume oxygen, and plant nutrients refer to elements needed by plants rather than erosion control practices.