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
Universal Soil Loss Equation predicts the amount of soil losses that may occur from:
Wind erosion
Rill erosion
Gully erosion
Tillage erosion
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
The act of farming using principles of ecology, the study of relationships between organisms and their environment is known as:
Sustainable agriculture
Carbon farming
No-till farming
Afforestation
The universal Soil Loss Equation is:
A = RK
A = SCP
S = ARKLCP
A= RKLSCP
What is process by which pH value of the soil decreases over time called?
Acidification
Salinization
Soil pollution
Carbonization
Which of the following dominates in land degradation?
Degradation by wind and water erosion
Physical degradation
Chemical degradation
Biological degradation
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
Which of the following may lead to desertification?
Low precipitation
Salinisation
