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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.

49 questions JAMB 628 WAEC 2054 CUSTOM 1

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Past Questions

49 questions

Question 1 of 20 49 total questions

Question 11

waec 2021

The diagram below illustrates a farm operation. Study it and answer this question.
Open photo

Which of the following statements is not a reason for carrying out the illustrated farm operation? To

Aexpose the leaves to sunlight

Bprevent damage by rodents

Cimprove the yield of the crop

Dprevent lodging of the plants

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Question 12

waec 2021

Elaeis guineensis and Arachis hypogaea are examples of

Alatex crops

Boil crops

Cfibre crops

Dfruit crops

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Question 13

waec 2021

Propagation of ginger is generally done using it's

Acorn

Brhizome

Csucker

Dseed

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Question 14

waec 2021

Two species of kola grown for commercial purposes in West Africa are

ACola acuminata and cola gigantea

BCola nitida and cola verticillata

CCola nitida and cola acuminata

DCola verticillata and cola gigantea

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Question 15

waec 2021

A plot of land devoted to the cultivation of fruit trees is called

Aorchard

Bfarmstead

Cforest

Dranch

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Question 16

waec 2021

Okro seeds are sown on 0.72 hectares of farmland at a spacing of 60cm. Calculate the expected plant population

A3,600 plants

B7,200 plants

C10,000 plants

D20,000 plants

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Question 17

waec 2021

The botanical name of onion is

AZea mays

BOryza sativa

CCarica papaya

DAllium cepa

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Question 18

waec 2021

Yam stored in a barn should be inspected at least once a week in order to

Aremove irregular shaped tubes

Bcontrol termite attack

Cprevent mouldiness in yam

Dremove sprouts and rotten tubers

View Explanation & Discuss

Question 19

waec 2021

Drying of newly harvested grains before storage helps to increase the

Amoisture content

Bpest incidence

Cseed viability

Dnutrient content

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Question 20

waec 2021

The following factors are essential for maize production except

Ahigh temperature

Blow temperature

Crelative humidity

Dadequate rainfall

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Question 21

waec 2021

The phosphorus cycle is described as being sedimentary because phosphorus

Ais a macroelement

Bis an earthbound element

Cis solid at room temperature

Doccurs in the atmosphere

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Question 22

waec 2021

A farmer practices crop rotation in order to

Areduce yield

Bimprove soil texture

Cincrease pest incidence

Dimprove soil fertility

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Question 23

waec 2021

Which of the following practices will improve clay soil?

Ause of acid-forming fertilizers

Bbush burning

Caddition of sodium chloride

Daddition of organic material

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Question 24

waec 2021

In an experiment determine the percentage of organic matter in a soil sample, the following data was collected; weight of over-dried soil before burning = 50g
weight of over-dried soil after burning = 28g. Use the information to answer this question.

Determine the percentage of organic matter in the soil

A22%

B44%

C56%

D60%

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Question 25

waec 2021

Calculate the weight of organic matter in the soil

A11g

B22g

C44g

D78g

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Question 26

waec 2021

Microorganisms that decompose organic matter will function best under

Awaterlogged soil condition

Banaerobic soil condition

Clow soil tempertaure

Doptimum soil PH

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Question 27

waec 2021

Which of the following pairs of raw materials is used in the canning industry

Ameat and fish

Bcotton and sea

Chide and skin

Dpulpwood and cocoa

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Question 28

waec 2021

The new rock formed when limestone is subjected to great heat and pressure is

Aslate

Bgraphite

Cmarble

Dgneiss

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Question 29

waec 2021

Open photo

The major source of water to the plants in the diagram is

Agravitational water

Bhygroscopic water

Ccapillary water

Dsurface water

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Question 30

waec 2021

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

The process labelled II is

Atranspiration

Bcondensation

Cevaporation

Drespiration

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