agriculture MCQs – Page 157

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 Review each marked answer and report any item that may be outdated or unclear.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

3121. If the chlorophyll content in plant increases, the solar radiation transmitted:
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A. None of these

B. Decreases

C. Increases

D. Constant

3122. The unique soil environment under the influence of plants roots is called rhizosphere and this term was given by__________?
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A. Helium. S. Denial

B. A.Q khan

C. Aristotle et al.

D. Hiltner

3123. World biodiversity day is celebrated on:_________?
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A. 2-Mar

B. 22-Apr

C. May-22

D. 21-Mar

3124. Which chemical used to prevent evaporation from surface of water in water bodies?
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A. Cetyle alcohol

B. Methyle alcohol

C. both A and B

D. None of these

3125. C:N ratio of microorganism:
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A. 15:1-20:1

B. N0ne of the above

C. 10:1-15:1

D. 4:1-8:1

3126. Transportation & cementation of primary rocks:
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A. All of the above

B. Sedimentary rocks

C. Secondary rocks

D. Aqueous rocks

3127. Who consider the various properties of soil in relation to plant production?
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A. Soil chemist

B. Pedologist

C. agronomist

D. Edaphologists

3128. The soils most prone to structural crusts are those which are higher in_________?
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A. Clay content

B. Sodium content

C. Silt content

D. Both A & B

3129. In Balochistan, deserts also exists in _________, which supoorts wind erosion excluding rocky mountains:
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A. Desert of Kharan

B. Noshki

C. Both A & B

D. Qilla SaifUllah

3130. Rhizosphere is:
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A. Area with in the roots

B. Root surface

C. An area of soil in from root surface to 10 cm

D. An area of soil in immediate vicinity around root

3131. swelling clay soils, develop cracks due to greater proportion of swelling type clays:
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A. Vertisols

B. Alfisols

C. None of the above

D. Ultisols

3132. The immobilization and accumulation of the eluviated constituents at some depth beneath the soil surface:________?
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A. Eluviation

B. Iluviation

C. Melanization

D. Illuviation

3133. Soils that have more than 20% organic matter are termed as organic soils. These are also called:________?
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A. Peat soil

B. solonchalk soil

C. Muck soil

D. Both a and c

3134. Erosion permitting and erosion resisting crops grow alternatively at right angle to the slope of the land is called as:_________?
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A. Strip planting

B. All of the above

C. Cover planting

D. Linear planting

3135. Thick concordant bodies which force the overlying sediments to form dome-shaped hills are called_____________________?
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A. Batholiths

B. Dike

C. Pegmatic

D. Laccoliths

3136. Who gave the equation for study of soil property ?
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A. Jenny

B. Newton

C. Ziebig

D. Neil

3137. Nitrogen gases are involved in_____________________?
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A. Sleepy feelings

B. Acid rains

C. Hair disease

D. Mental disease

3138. The available from of nitrogen for plant is________________?
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A. NO<sub>3</sub>

B. NH<sub>4</sub>

C. Both a & b

D. None of the above

3139. Which rock is harder_________________?
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A. Sand stone

B. Sedimentary

C. Metamorphic

D. Igneous

3140. Widely spread saprophytic fungi is________________________?
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A. None of the above

B. Endospore

C. Basidiomycetes

D. Ascomycetes

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