Classroom

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.

129 questions JAMB 628 WAEC 2054 CUSTOM 1

Select subject

Download PHP app Ask a Question Check Syllabus Past Question Videos Topic Video Lessons

Take a test

Custom CBT

Create and set up a CBT environment with your preferred subjects.

JAMB CBT Simulator

Practice JAMB CBT with real UTME past questions in CBT format.

WAEC CBT Practice 2026 Simulator

CB-WASSCE styled past question practice.

NECO CBT Practice 2026 Simulator

SSCE & GCE styled past question practice.

Past Questions

129 questions

Question 1 of 20 129 total questions

Question 21

waec 2021

The diagram below illustrates processes in the water cycle. Use it to answer this question.
Open photo

The process labelled I is.

Aevaporation

Babsorption

Crespiration

Dtranspiration

View Explanation & Discuss

Question 22

waec 2021

In planning a farmstead, the structure which should be located on high elevation is the

Afish pond

Bpigsty

Cfarmhouse

Dprocessing shed

View Explanation & Discuss

Question 23

waec 2021

Which of the following types of farm power does not cause pollution?

Ahydro

Belectrical

Cmechanical

Dchemical

View Explanation & Discuss

Question 24

waec 2021

A tractor-mounted sprayer used on large scale farms is the

Aelectrodyne sprayer

Bmotorised sprayer

Cknapsack sprayer

Dboom sprayer

View Explanation & Discuss

Question 25

waec 2021

The diagram above illustrates a farm tool. Use it to answer this question.

The farm implement that could perform a similar function as the illustrated tool is

Aplough

Bharrow

Cridger

Dcultivator

View Explanation & Discuss

Question 26

waec 2021

The diagram above illustrates a farm tool. Use it to answer this question.

The illustrated farm tool is used for

Amaking mounds

Btransplanting seedlings

Ccutting trees

Dpruning hedges

View Explanation & Discuss

Question 27

waec 2021

The construction of rural feeder roads solves the following access problems in agriculture except

Amarketing

Btransportation

Cextension services

Dland tenure system

View Explanation & Discuss

Question 28

waec 2021

Horse racing and polo are events where horses are used for

Awildlife conservation

Brecreation

Cdowry payment

Dtransportation

View Explanation & Discuss

Question 29

waec 2021

The branch of crop science which deals with the study of insect pests is

Azoology

Bagronomy

Centomology

Dpathology

View Explanation & Discuss

Question 30

jamb 2021

Calculate the salvage value of a tractor with a depreciation value of ₦10,580.00 and initial cost of ₦50,000 after a year of use

A₦10,580

B₦30,290

C₦39,420

D₦60,580

View Explanation & Discuss

Question 31

jamb 2021

If 200 layers will consume 25kg of feed per day. Calculate the amount of feed consumed by a layer per day.

A0.25kg/day

B0.2kg/day

C0.5kg/day

D0.125kg/day

View Explanation & Discuss

Question 32

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

View Explanation & Discuss

Question 33

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

View Explanation & Discuss

Question 34

jamb 2021

The correct sequence in the processes of crop improvement is

AIntroduction → selection → breeding

BBreeding → selection → introduction

CBreeding → introduction → selection

DIntroduction → breeding → selection

View Explanation & Discuss

Question 35

jamb 2021

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

Aroots

Bleaves

Cstems

Dfruits

View Explanation & Discuss

Question 36

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)

View Explanation & Discuss

Question 37

jamb 2021

Gummosis disease of citrus is caused by

Aaphids

Bfungi

Cwhite flies

Dbacteria

View Explanation & Discuss

Question 38

jamb 2021

Callosobruchus maculates is a common pest of

Amaize

Bcowpea

Crice

Dmillet

View Explanation & Discuss

Question 39

jamb 2021

Root-knot disease of tomato is caused by

Avirus

Bnematode

Cbacterium

Dfungus

View Explanation & Discuss

Question 40

jamb 2021

The tree species commonly planted for pulp wood is

AGmelina

BCassia

CAlibiza

DTectona

View Explanation & Discuss

Question Navigator

Current

Agricultural Science Past Questions

Take a test

Custom CBT

JAMB CBT Simulator

WAEC CBT Practice 2026 Simulator

NECO CBT Practice 2026 Simulator

Past Questions

Question Navigator

MathsFaculty