The capacity of a soil to function on sustained basis promoting plant & animal health:
A. Soil neutrality
B. Soil quality
C. Both a & b
D. None of these
Agriculture MCQs
Organic matter decomposes rapidly in Pakistani soils because of ____________ conditions, that is why our soils generally have < 1% organic matter:
A. High temperature
B. Alkaline
C. Both a & b
D. None of a & b
The soil quality is always deteriorated by:_________?
A. Erosion & pollution
B. Waterlogging & salinization
C. Nutrient mining
D. All of these
New soils, no or little profile development:
A. Entisols
B. Inceptisols
C. Andisols
D. Aridisols
Inceptisols:___________?
A. Young soils with few horizons
B. Volcanic soils
C. Organic soils
D. Dry soils
Volcanic soils:
A. Aridisols
B. Gelisols
C. Endsols
D. None of the above
Soil-forming minerals occurring in rocks do not contain any water, they undergo ______________ when exposed to humid conditions & break down as in chemical weathering process:
A. Carbonation
B. Acidification
C. Hydration
D. Dissolution
Soil is a variable mixture of Major components:
A. Solids
B. Liquids
C. Gases
D. All of the above
The soil air contains a number of gases ______________ & water vapours:
A. Nitrogen
B. Oxygen
C. Carbon dioxide
D. All of the above
Igneous rocks are called:__________?
A. Primary rocks
B. Secondary rocks
C. Aqueous rocks
D. None of the above
