Green leafy vegetables are a good source of?
Correct answer C. Folate
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Agronomy MCQs
Page 11 of Agronomy multiple-choice questions with answers. Tap an option to check yourself.
Page 11 of 15
After solar energy is absorbed at the earth’s surface, in what form is it radiated back?
Correct answer B. Infrared radiation
What are plants that grow in dry regions called?
Correct answer B. Xerophytes
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What is the ratio of the area actually cultivated to the total farm area over the year called?
Correct answer D. Cropping intensity
What is the accumulation in the B horizon of material transported from the A horizon called?
Correct answer A. Illuviation
What is the loss of water from a cell, causing the protoplasm to shrink away from the cell wall, called?
Correct answer B. Plasmolysis
What is the geographical area of Pakistan in million hectares?
Correct answer B. 80
Which equipment is used to separate, clean and grade small seeds in a sample?
Correct answer B. Seed sorter
Which enzyme is responsible for biological nitrogen fixation?
Correct answer C. Nitrogenase
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Which crop is the major source of Pakistan’s foreign exchange earnings?
Correct answer C. Cotton
The Green Revolution came about mainly because of the development of which crop varieties?
Correct answer C. Wheat varieties
What do root nodules in plants help with?
Correct answer D. Nitrogen fixation
What does an excess of nitrogen cause in plants?
Correct answer C. Delay in ripening
What is a penetrometer used to measure in soil?
Correct answer A. Soil compaction
The synthetic herbicide 2,4-D is derived from which group of compounds?
Correct answer D. Auxins
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How much phosphorus does a wheat crop take up in total per tonne of grain?
Correct answer B. 2-3 kg
At what soil pH is nitrogen mineralisation affected?
Correct answer B. Above 6
A low soil pH usually indicates which condition?
Correct answer D. Low N and Ca
In cereal crops, where is most of the potassium (K) concentrated?
Correct answer C. Straw
Approximately how much land in Pakistan is affected by water erosion?
Correct answer A. 13.05 million ha