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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Past Questions

2,683 questions
Question 1 of 20 2,683 total questions
Question 191
waec 2022

Which of the following crops is correctly matched with a disease that affects it?

AMaize - smut
BSorghum - scab
CRice- black arm
DYam- blast
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Question 192
waec 2022

The most common way of controlling weeds in tree crop plantations is by

Acrop rotation
Bhand pulling
Cflooding
Dslashing
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Question 193
waec 2022

Damping of disease of tomato could be controlled by

Astaking
Bsupplying
Cthinning
Dpruning
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Question 194
waec 2022

Capping is a cultural practice carried out in the cultivation of

Acarrot
Bcassava
Cpotato
Dyam
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Question 195
waec 2022

Which of the following groups of crops will thrive in areas with high rainfall?

ACotton, cowpea and groundnut
BMillet, maize and cotton
CGuinea com, cowpea and maize
DCocoa, oil palm and rubber
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Question 196
waec 2022

The practice of placing the correct number of seeds in the soil with definite intra-row and inter-row spacing is called

Aseed drilling
Bcentrifugal distribution
Cprecision planting
Dseed broadcasting
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Question 197
waec 2022

If maize seeds are sown at a spacing of 60 cm by 90 cm, what is the plant population of maize expected on one hectare of farmland?

A18,519 plants
B16,667 plants
C11,111 plants
D5,400 plants
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Question 198
waec 2022

Swampy lands are most suitable for growing

Ayam
Brice
Cmaize
Dtomato
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Question 199
waec 2022

Monocotyledonous crops include

Aoil palm, rice, and plantain.
Bcowpea, pepper and tomato
Cgarden egg, cassava and mango
Drubber, cashew and orange
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Question 200
waec 2022

Water can be conserved in the soil by

Amulching, strip cropping and cover cropping
Bweeding, strip cropping and clean clearing
Cclean clearing, mulching, and strip cropping
Dcover cropping, mulching and weeding
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Question 201
waec 2022

Nitrogen is important in plants because it is mainly needed in

Afruit formation
Broot development
Cleaf formation
Dcell division
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Question 202
waec 2022

Potassium deficiency in cereal crops Is indicated by

Abrowning of leaves Trom the tips and margins
Byellowing of younger leaves
Cpurpling of leaves
Dwhite and irregular spots on leaves
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Question 203
waec 2022

The diagram above illustrates a tool used to analyze a soil sample in an experiment. Use it to answer this qu

The diameter of the soil particle that would be retained in the part labelled II is

A0.002 - 0.02 mm
B0.02 - 0.2 mm
C0.2 - 2.0 mm
D2.0 mm
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Question 204
waec 2022

The diagram above illustrates a tool used to analyse a soil sample in an experiment. Use it to answer this question.
The part labelled Ill will contain

Aclay
Bsilt
Ccoarse sand
Dfine sand
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Question 205
waec 2022

The diagram below illustrates a tool used to analyse a soil sample in an experiment. Use it to answer this question.
Open photo

The aim of the experiment is to determine the soil

Astructure
Btexture
Cmineral matter
Dorganic matter
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Question 206
waec 2022

Use the information below to answer this question.
In an experiment on soil porosity, the following results were obtained:
Volume of dry soil = 52cm³
Volume of water= 48cm³
Volume of soil and water=78cm³

Calculate the porosity of the soil sample

A28.21%
B42.31%
C45.83%
D61.54%
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Question 207
waec 2022

Use the information below to answer this question.
In an experiment on soil porosity, the following results were obtained:
Volume of dry soil = 52cm³
Volume of water= 48cm³
Volume of soil and water=78cm³

Determine the volume of airspace in the soil sample.

A22cm³
B26cm³
C30cm³
D100cm³
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Question 208
waec 2022

A difference between physical and chemical weathering is that

Athere is a change in the mineral composition of rock in physical weathering
Bthe mineral composition of rock is changed in chemical weathering.
Ccarbonation is necessary in physical weathering.
Dwind is necessary in chemical weathering.
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Question 209
waec 2022

The main factors responsible for rock weathering in the desert are high temperature and 

Aanimal activity
Bwater
Cwind
Droot growth
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Question 210
waec 2022

Decomposition of soil organic matter is mainly caused by 

Abacteria
Balgae
Cfungi
Dnematodes
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