agriculture MCQs – Page 161

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 Review each marked answer and report any item that may be outdated or unclear.

agriculture Mcqs

1. soil science 2. agronomy 3. entomology 4. water management 5. horticulture 6. agricultural economics 7. plant pathology 8. food technology 9. animal husbandry 10. plant breeding and genetics

3201. Accumulation of soluble salts root zone is known as____________________?
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A. Sodication

B. Degradation

C. Desodication

D. Salininzation

3202. Slipperiness is due to__________________?
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A. Vander walls forces

B. None of the above

C. Wire bond

D. Covalent bond

3203. Antioxidant is used to reduce the process of_____________________?
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A. Reduction

B. Oxidation

C. Both a & b

D. Dehydration

3204. The toxicity level of Zn (mg/kg) in plants suggested by some workers is___________________?
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A. > 50 mg kg-1

B. None of these

C. > 10 mg-1

D. > 400 mg kg-1

3205. Most abundant mineral in the earth crust is______________________?
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A. Feldspar

B. N-Feldspar

C. Amplubole

D. S-Feldspar

3206. Metamorphic rocks are formed from____________________?
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A. Igneous rocks

B. Sedimentary rocks

C. Both a & b

D. Cleavage

3207. Which soil is suitable for nce________________?
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A. None of the above

B. Fine textured

C. Sandy

D. Coarse textured

3208. The device used for the measurement of positive pressure potential of soil water is known as_________________?
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A. Tensiometer

B. Piezometer

C. Lysimeter

D. Barometer

3209. Which rock contain potash feldspar ?
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A. All the above

B. Gabbro

C. Norile

D. Syeruite

3210. When two or more functional groups of single ligand are coordinated to metal cation the complex is termed as___________________?
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A. Solution complex

B. Complex ion

C. All the above

D. Chelate

3211. Material deposited by the wind is called____________________?
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A. Regolith

B. Alluvium

C. Eolian

D. Colluvial

3212. Rocks formed from molten magma are called__________________?
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A. Igneous rocks

B. Sedimentary rocks

C. Alluvial rocks

D. All the above

3213. Salt-tolerant plants are called ____________________?
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A. Halophytes

B. Glycophytes

C. Xerophytes

D. All the above

3214. Geochemical weathering processes occurs______________________?
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A. At the level

B. On the mountain

C. On surface

D. Below soil solum

3215. Elements essentially required for growth of all plants species are___________________?
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A. 16

B. 32

C. 3

D. 15

3216. The exact formula for sodium hexametaphosphate is___________________?
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A. [(NaPO6)13]

B. [(NaPO2)6]

C. [(NaPO3)13]

D. None of the above

3217. The little clay mineral is_____________________?
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A. Non-expending

B. None of the above

C. None or little expending

D. Expending

3218. The zorawar is brand name of ___________________?
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A. None of the above

B. TSP

C. DAP

D. MAP

3219. The most abundant metal in the earths crust and toxic to plants in low concentration is____________________?
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A. Al

B. Fe

C. All the above

D. Mo

3220. Addition of sodium hexametaphosphate in soil for determination of soil texture causes__________________?
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A. All the above

B. Agregation of soil particles

C. Dispersion of soil particles

D. Cementing of soil particles

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