Which of the following is a physical property of soil?
Correct answer D. None of the above
Topic / 475 questions
Soil Science MCQs
Page 2 of Soil Science multiple-choice questions with answers. Tap an option to check yourself.
Page 2 of 24
Which soil holds the most water?
Correct answer D. Clayey
Which soil is suitable for rice?
Correct answer C. Fine textured
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What is the clustering of individual particles into groups called?
Correct answer B. Flocculation
What colour is fertile soil usually?
Correct answer D. Black
What kind of process is weathering?
Correct answer C. Both A & B
Who devised the equation for studying soil properties as a function of soil-forming factors?
Correct answer A. Jenny
Which nutrient particularly influences root growth?
Correct answer C. Phosphorus
Who described soil formation as a set of four processes?
Correct answer B. Simonson
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What causes slipperiness in clay minerals?
Correct answer B. Van der Waals forces
Which element can be fixed by smectite?
Correct answer B. K
What causes the permanent charge in soil?
Correct answer A. Isomorphic substitution
Who studied the vertical movement of water through soil?
Correct answer D. Darcy
When two or more functional groups of one ligand bind to a metal cation, what is the resulting complex called?
Correct answer C. Chelate
What is the typical pH of Pakistani soils?
Correct answer B. 7.5
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Which fertilisers contain potassium?
Correct answer D. All of the above
Under the US Salinity Laboratory classification, a soil is classed as sodic (non-saline) when which of the following applies?
Correct answer D. All of the above
In what form is nitrogen available to plants?
Correct answer C. Both A & B
What is the molar mass of NaCl?
Correct answer B. 58.58
In what form is calcium available to plants?
Correct answer C. Ca2+ (free cation)