What is the presence of toxic chemicals in soil in high concentrations called?
Acidification
Salinization
Soil pollution
Soil erosion
Which of the following is the most serious environmental consequence of soil degradation?
Dust storms
Desertification
Mudflows
What is the process of establishing a forest on land that is not a forest called?
Afforestatiion
Reforestation
Carbon farming
Sustainable agriculture
What is the minimum soil depth required for agricultural production?
10 mm
100 cm
150 mm
150 cm
Which of the following dominates in land degradation?
Degradation by wind and water erosion
Physical degradation
Chemical degradation
Biological degradation
Universal Soil Loss Equation predicts the amount of soil losses that may occur from:
Wind erosion
Rill erosion
Gully erosion
Tillage erosion
The universal Soil Loss Equation is:
A = RK
A = SCP
S = ARKLCP
A= RKLSCP
How long does it take for natural processes to replace 25mm of topsoil?
10 years
25 years
100 years
500 years
What is the process of capturing carbon from the atmosphere, using plants grown on farms called?
Rain falling on which of the following area causes minimal soil erosion?
Frozen soil
Ploughed soil
Land with partial crop cover
All of the above
