Soil is formed through a combination of weathering of rocks, deposition of sediments, and activity of living organisms.

Peat soil is not a type of soil, but rather a type of organic matter that is found in wetlands.

Soil erosion can be caused by wind, water, tillage, and other factors.

Irrigation is not a cause of desertification, but rather a way to prevent it.

Desertification can be reversed through a combination of reforestation, sustainable agriculture, water conservation, and other measures.

Desertification leads to a decrease in agricultural productivity, not an increase.

Soil compaction is the process by which soil is compacted and loses its structure.

There is no D horizon in soil.

Salinization is the process by which soil is salinized.

Pesticides are not soil amendments, but rather chemicals used to control pests.

Leaching is the process by which soil is leached of its nutrients.

Stony is not a type of soil texture.

Acidification is the process by which soil is acidified.

Laminar is not a type of soil structure.

Eutrophication is the process by which soil is eutrophicated.