agriculture MCQs – Page 107

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

2121. Father of agricultural chemistry is___________________?
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A. J. jones

B. Neuron

C. Vonliebig

D. Neil Brady

2122. Mean annual precipitation for tundra region is ____________________?
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A. None of the above

B. 70-80 cm

C. 0-50 cm

D. 150-70 cm

2123. The inner shell of earth consists of_____________________?
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A. Silicate of Fe & Mg

B. Mg

C. Fe

D. Silicate

2124. The available form of calcium to plant is________________?
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A. Ca(free cation

B. CaO

C. None of the above

D. Ca

2125. The term applied to a material which tends to absorb moisture from the atmosphere is called__________________?
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A. Capillary

B. Hydroscopic

C. Available

D. Gravitational

2126. Total salt affected soils of Pakistan are____________________?
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A. 10.5 m ha

B. 6.3 m ha

C. 5.0 m ha

D. 12.3 m ha

2127. Silt stones consists of grains whose size range from____________________?
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A. 0.625 mm

B. 0.004 mm

C. 0.0625 mm

D. Both b & c
2128. Approximately caloric value in Kcal/100 g ofwalnut is__________________?
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A. 700

B. 600

C. 650

D. 500

2129. Who characterized soil formation as set of 4 process______________________?
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A. Newton

B. Jinney

C. Ziking

D. Simonson
2130. The deficiency of an enzyme is greatly influenced by the______________________?
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A. Concentration of enzyme

B. pH

C. All the above

D. Environmental temperature

2131. Which one of the following plays the role of a natural oxidants____________________?
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A. Vitamin E

B. Vitamin C

C. Vitamin A

D. None of the above

2132. For preservation of fruit dehydration is carried out by_____________________?
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A. Puff drying

B. Vacuum drier

C. all the above

D. Tunnel drier

2133. An ion or molecule in the coordination sphere central ion is called__________________?
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A. Potential

B. Ligand

C. Complexion

D. Chelate

2134. The storage life of mangoes at 50F with R.H of 90% is__________________?
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A. 1-2 weeks

B. 4-6 weeks

C. 2-4 weeks

D. 2-3 weeks

2135. Pure water has an water activity (Aw) of___________________?
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A. 1.00

B. 0.99

C. non of these

D. 1.5

2136. To make light cakes, biscuits and muffins which leavening agent is used___________________?
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A. All the above

B. Phosphate salts

C. Magnesium carbonate

D. Silicoaluminate

2137. Large pieces of erupted magma are called_____________________?
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A. Sill

B. Dike

C. Volcanic block

D. Volcanic ash

2138. Color off basic matic rock is_____________________?
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A. Light green

B. Dark colored

C. Blue

D. Yellow

2139. Cytochrome Oxidase and alcohol de hydrogenise are the examples of____________________?
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A. Lysases

B. Oxidoreductases enzymes

C. Transferases

D. Hydrolases

2140. Microorganisms have C/N ratio of____________________?
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A. 20:01

B. 4:1

C. 2:01

D. 12:01