agriculture MCQs – Page 142

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 Review each marked answer and report any item that may be outdated or unclear.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

2821. Nutritive elements needed in large quantities to ensure normal plant development:
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A. N, P, K

B. S, Mg, Ca, Fe

C. Both a & b

D. None of a & b

2822. Which is the correct sequence of soil erosion by water:
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A. None of these

B. Sheet-Rill-Gully

C. Gully-Sheet-Rill

D. Rill-Sheet-Gully

2823. Soils are also contaminated by a number of inorganic compounds which are also high toxic to human & other animals & are extremely poisonous may include:
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A. Arsenic & Cadmium

B. Mercury & chromium

C. Calcium & Magnesium

D. Both A & B

2824. The coprophilic fungi inhabit:
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A. Decaying leaves

B. Deadwood

C. Dung substratum (herbivore feces)

D. Food articles

2825. Nutritive elements needed in large quantities to ensure normal plant development:
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A. N, P, K

B. S, Mg, Ca, Fe

C. Both a & b

D. None of a & b

2826. Which is the main cause of desertification?
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A. None of the above

B. Accelerated activities

C. Over grazing

D. Dry farming agriculture

2827. Soils are also contaminated by a number of inorganic compounds which are also high toxic to human & other animals & are extremely poisonous may include:
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A. Arsenic & Cadmium

B. Mercury & chromium

C. Calcium & Magnesium

D. Both A & B

2828. Which of the following nutrient play the most effective role in controlling rate of transpiration:
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A. Zinc

B. Phosphorus

C. Potassium

D. Mg

2829. Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:
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A. Mulch

B. Muck

C. Mycorrhizae

D. Mull

2830. The lower leaves turn yellow and in some crops they quickly start drying up as if suffering from shortage of water, stunted growth, leaves & fruits shedding & whole plant becomes yellow, are deficiency symptoms of:_________?
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A. Potash

B. Nitrogen

C. Calcium

D. Both a & c

2831. The highest Cation Exchange Capacity is in:_________?
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A. Sandy Soil

B. Clay soil

C. Gravely soil

D. Both A & C

2832. The solid wastes generated in Pakistan are about: ___________?
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A. 65, 772 tonnes/day

B. All of the above

C. 12250 tonnes/day

D. 47,920 tonnes/day

2833. Field Capacity is a point at which?
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A. All the macro & micropores in the soil are filled with water

B. All the macropores filled with air & the micropores filled with water

C. All of the above wrong

D. All the macropores filled with water & the micropores filled with air

2834. An important component of total soil C is charcoal, also known as:__________?
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A. Black C

B. Biochar

C. Both A & B

D. None of the above

2835. What civil engineers called soil?
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A. Land

B. Soil

C. Earth

D. ragmented rock

2836. Term forest is derived from: ___________?
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A. None of the above

B. Latin word

C. French word

D. English word

2837. Flow of nitrogen in soil due to:_________?
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A. None of the above

B. Diffusion

C. Interception

D. Mass flow

2838. Chemicals, used for controlling the disease of crops, fruits & vegetables is___________ & chemical prepared for controlling insect-pests -:
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A. Weedicidesinsecticides

B. None of the above

C. InsecticidesHerbicides

D. FungicidesInsecticides

2839. Maximum fixation of K occurs:__________?
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A. 1:2 clay mineral

B. 1:1 clay mineral

C. 2:2 clay mineral

D. 2:1 clay mineral

2840. Fossils are found in which type of rock:
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A. Sedimentary rock

B. Metamorphic rock

C. Stratified rock

D. Both A & C

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