A. Primary rocks
B. Secondary rocks
C. Aqueous rocks
D. None of the above
Submitted by: Shafiq Rehman
Author: Shafiq-ur-Rehman
A. Nitrogen
B. Oxygen
C. Carbon dioxide
D. All of the above
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A. Solids
B. Liquids
C. Gases
D. All of the above
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A. Carbonation
B. Acidification
C. Hydration
D. Dissolution
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A. Aridisols
B. Gelisols
C. Endsols
D. None of the above
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A. Young soils with few horizons
B. Volcanic soils
C. Organic soils
D. Dry soils
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A. Entisols
B. Inceptisols
C. Andisols
D. Aridisols
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A. Erosion & pollution
B. Waterlogging & salinization
C. Nutrient mining
D. All of these
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A. High temperature
B. Alkaline
C. Both a & b
D. None of a & b
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A. Soil neutrality
B. Soil quality
C. Both a & b
D. None of these
Submitted by: Shafiq Rehman
