What is the presence of toxic chemicals in soil in high concentrations called?
Acidification
Salinization
Soil pollution
Soil erosion
Which of the following may lead to desertification?
Low precipitation
Salinisation
All of the above
What is process by which pH value of the soil decreases over time called?
Carbonization
How long does it take for natural processes to replace 25mm of topsoil?
10 years
25 years
100 years
500 years
What is the estimate of the ability of soils to resist erosion called?
Gradient
Erodibility
Salinity
Soil buffering capacity
What is the process of establishing a forest on land that is not a forest called?
Afforestatiion
Reforestation
Carbon farming
Sustainable agriculture
Rain falling on which of the following area causes minimal soil erosion?
Frozen soil
Ploughed soil
Land with partial crop cover
Transformation of habitable land to desert is known as:
Urbanization
Desertification
Afforestation
What is the informal geologic chronological term for the period that serves to mark the evidence and extent of human activities that have had a significant global impact on the Earth's ecosystems?
Cretaceous
Holocene
Anthropocene
Jurassic
What is the minimum soil depth required for agricultural production?
10 mm
100 cm
150 mm
150 cm
