Soil degradation is the process by which soil loses its fertility and productivity due to various factors such as erosion, compaction, salinization, and pollution.

Biological erosion is not a major type of soil erosion. Wind erosion, water erosion, and tillage erosion are the three major types of soil erosion.

Soil compaction is primarily caused by the use of heavy machinery, such as tractors and bulldozers, which compress the soil and reduce its porosity.

Soil salinization does not lead to increased soil fertility. It typically results in reduced crop yields, waterlogging, and soil alkalinity.

Soil reclamation is the process of improving the quality of degraded soil by restoring its fertility and productivity.

Deforestation is not a common method of soil conservation. Contour plowing, terracing, and crop rotation are all common methods used to conserve soil.

The primary cause of soil pollution is the excessive use of agricultural chemicals, such as fertilizers and pesticides.

Soil pollution does not lead to increased crop yields. It typically results in reduced soil fertility, water contamination, and air pollution.

Soil remediation is the process of removing pollutants from contaminated soil to restore its quality and productivity.

Landfilling is not a common method of soil remediation. Phytoremediation, bioremediation, and incineration are all common methods used to remediate contaminated soil.

The primary goal of sustainable soil management is to maintain soil fertility, prevent soil erosion, and reduce soil pollution.

Applying chemical fertilizers is not a key principle of sustainable soil management. Minimizing soil disturbance, using organic amendments, and crop rotation are all key principles of sustainable soil management.

Soil stewardship is the process of managing soil in a way that ensures its long-term productivity and sustainability.

Deforestation is not a benefit of soil stewardship. Improved soil fertility, reduced soil erosion, and increased crop yields are all benefits of soil stewardship.

Soil scientists are responsible for studying soil properties, classifying soils, and managing soil resources.