Forest soils have a lower bulk density than agricultural soils because of their ____ content. What completes the sentence?
Correct answer A. High organic matter
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Agriculture MCQs
Page 44 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 44 of 135
In which ionic forms do plants absorb phosphorus?
Correct answer C. Both
What is the oil content of sunflower seed?
Correct answer C. 25-35%
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What is the ratio of the rate of change of an outlet’s discharge to the rate of change of the water level in the distributary at its normal depth called?
Correct answer B. Sensitivity
In acidic soil, in which form is phosphorus taken up by plants?
Correct answer C. Primary orthophosphate
What is the most economical central angle for an arch dam?
Correct answer B. 133º
In alkaline soils, in which form do plants take up phosphorus?
Correct answer B. Secondary orthophosphate
What is a structure built near weirs and barrages to help fish migrate upstream or downstream called?
Correct answer B. Fish ladder
Which statement about etiolation and albinism is true?
Correct answer C. Etiolation is physiological while albinism is genetic
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What term do civil engineers use for soil?
Correct answer A. Earth
Net irrigation requirement plus field irrigation losses gives which requirement?
Correct answer D. Field irrigation
Which cellular structure always disappears during mitosis?
Correct answer A. Nuclear membrane
Extrusive rocks, in which the grains are too fine to see with the naked eye, are also called what?
Correct answer C. Aphanitic rock
What is the diameter of a mitochondrion?
Correct answer D. 0.5-2 microns
Which irrigation method surrounds each tree with a ridge so that a pool forms when water is applied?
Correct answer D. Basin irrigation
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Which cell organelle is rich in catabolic enzymes?
Correct answer A. Lysosome
Deforestation may reduce the likelihood of which event?
Correct answer C. Rainfall
Land with a high alkali content can be reclaimed by adding what?
Correct answer D. CaSO4
What is the main cause of desertification?
Correct answer C. Overgrazing
What is a unit hydrograph called when its duration approaches zero?
Correct answer A. Instantaneous unit hydrograph