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Agricultural Science Past Questions

Study and practice Agricultural Science past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.

2,683 questions JAMB 628 WAEC 2054 CUSTOM 1

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2,683 questions

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Question 271

jamb 2021

If 100 pieces of pests is attacking an hectare of cocoa farm and 25% suddenly died while 40% of the remnant is sent for medical examination. What is the number of pest remaining?

A45

B50

C25

D75

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Question 272

jamb 2021

A condition in which a gene does not manifest observable characteristics in the presence of its dominant allele is known as

Adominance

Bmutation

Crecessiveness

Dhomozygosity

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Question 273

jamb 2021

The correct sequence in the processes of crop improvement is

AIntroduction → selection → breeding

BBreeding → selection → introduction

CBreeding → introduction → selection

DIntroduction → breeding → selection

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Question 274

jamb 2021

The characteristic symptoms of mosaic disease of crops is usually observed on

Aroots

Bleaves

Cstems

Dfruits

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Question 275

jamb 2021

Which of the weeds is dispersed by wind?

Apig weed (Boerhavia diffusa)

Bgoat weed (Ageratum conizoides)

CHause thorns (Acanthospermum hispidum)

DTridax (Tridax procumbeus)

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Question 276

jamb 2021

Gummosis disease of citrus is caused by

Aaphids

Bfungi

Cwhite flies

Dbacteria

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Question 277

jamb 2021

Callosobruchus maculates is a common pest of

Amaize

Bcowpea

Crice

Dmillet

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Question 278

jamb 2021

Root-knot disease of tomato is caused by

Avirus

Bnematode

Cbacterium

Dfungus

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Question 279

jamb 2021

The tree species commonly planted for pulp wood is

AGmelina

BCassia

CAlibiza

DTectona

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Question 280

jamb 2021

Which of the following is not a problem of forest management?

Aabsence of adequate information on the ecosystem

Binadequate support from government for the development of forest resources

Cplanting different varieties of timber

Dindiscriminate destruction of forest resources by bush fire

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Question 281

jamb 2021

Which of the following is not correct about Stylosanthers gracilis?

AIt is an animal legume

BIt is propagated by seeds

CIt is drought resistant

DIt produces nodules

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Question 282

jamb 2021

Ginger is propagated by

Asuckers

Brhizomes

Cseeds

Dtuber

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Question 283

jamb 2021

Ginning is a method of processing

Acocoa

Bcotton

Coil palm

Dpalm kernel oil

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Question 284

jamb 2021

The following are necessary operations in maize cultivation except?

Aweeding

Bthinning

Cnursery practices

Dfertilizer application

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Question 285

jamb 2021

The main aim of mechanized agriculture is

Areducing maturation time for crops

Bdecreasing number of pests

Chaving a large land area for cultivation

Dreducing cost of production

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Question 286

jamb 2021

Which of the following farm practices is not mechanized?

Aplanting

Bfertilizer application

Cbush clearing

Dtransplanting

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Question 287

jamb 2021

Which of the following surveying equipment is used for measuring angles during farm surveying?

ATheodolite

BMeasuring tape

CGunter's chain

DAbney level

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Question 288

jamb 2021

Which of the following is the correct order for land preparation?

Aland clearing → ploughing → harrowing → ridging

Bland clearing → harrowing → ploughing → ridging

Cland clearing → ploughing → ridging → harrowing

Dland clearing → harrowing → ridging → ploughing

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Question 289

jamb 2021

An important farm machine used for coupling many implements is

Adisc harrow

Bharvester

Ctractor

Dplough

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Question 290

jamb 2021

The most suitable source of power for stationary equipment on the farm is

Amachinery

Belectricity

Canimal

Dman

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