What are large fragments of erupted magma called?
Correct answer A. Volcanic block
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Agriculture MCQs
Page 16 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 16 of 135
What does the weathering of gabbro produce?
Correct answer A. Clay and iron oxide
Which of the following is a physical property of soil?
Correct answer D. None of the above
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Which soil holds the most water?
Correct answer D. Clayey
Which soil is suitable for rice?
Correct answer C. Fine textured
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
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Which nutrient particularly influences root growth?
Correct answer C. Phosphorus
Who described soil formation as a set of four processes?
Correct answer B. Simonson
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
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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
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