What is the presence of toxic chemicals in soil in high concentrations called?
Acidification
Salinization
Soil pollution
Soil erosion
How long does it take for natural processes to replace 25mm of topsoil?
10 years
25 years
100 years
500 years
Transformation of habitable land to desert is known as:
Urbanization
Desertification
Reforestation
Afforestation
What is the estimate of the ability of soils to resist erosion called?
Gradient
Erodibility
Salinity
Soil buffering capacity
Which of the following is the most serious environmental consequence of soil degradation?
Dust storms
Mudflows
What is process by which pH value of the soil decreases over time called?
Carbonization
What is the process of capturing carbon from the atmosphere, using plants grown on farms called?
Afforestatiion
Carbon farming
Sustainable agriculture
Which of the following may lead to desertification?
Low precipitation
Salinisation
All of the above
Universal Soil Loss Equation predicts the amount of soil losses that may occur from:
Wind erosion
Rill erosion
Gully erosion
Tillage erosion
What is the minimum soil depth required for agricultural production?
10 mm
100 cm
150 mm
150 cm
