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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.

2,054 questions JAMB 628 WAEC 2054 CUSTOM 1

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Past Questions

2,054 questions

Question 1 of 20 2,054 total questions

Question 181

waec 2018

The diagram above illustrates the digestive tract of a farm animal. Digestion of protein starts in the part labelled

BII

CIII

DIV

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Question 182

waec 2018

In the diagram of the digestive tract of a farm animal illustrated above, deamination is a function of the part labelled

BII

CIII

DIV

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Question 183

waec 2018

The diagram above is a crop pest. A cultural method used in controlling the pest illustrated is

Aspraying with insecticides

Bhand-pulling of weeds

Cfumigation of store

Dearly planting

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Question 184

waec 2018

The diagram above illustrates a crop pest. What kind of pest is this?

AA boring insect pest

BA chewing insect pest

CA sucking insect pest

DA piercing insect pest

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Question 185

waec 2018

A groundnut plant showing stunted growth with yellow or mottled leaves is likely to be infected with

Ablight

Btikka

Crosette

Danthracnose

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Question 186

waec 2018

An effective method of preventing viral diseases in crops is by

Atreating the seeds with fungicides

Bpracticing crop rotation

Cregular spraying of crops

Dplanting resistant varieties

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Question 187

waec 2018

A disadvantage of vegetative propagation is that

Aplants are true to type

Bfruits are small in size

Cplants take a long time to mature

Ddiseases are easily transferred to offspring

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Question 188

waec 2018

Hibiscus and croton are examples of

Aground covers

Bhedge plants

Clawn plants

Davenue trees

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Question 189

waec 2018

Ornamental plants are commonly used for the following purposes except

Afor exterior decorations

Bas sources of perfumes

Cprovision of shade

Das bedding materials for animals

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Question 190

waec 2018

Assuming that brown colour is dominant over black colour in cowpea, what percentage of the F1 will have brown colour , if a homozygous brown cowpea is crossed with a homozygous black cowpea?

A100%

B75%

C50%

D25%

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Question 191

waec 2018

One advantage of cross breeding is that the

Aoffspring resemble the recessive parent

Byield of the offspring may not be comparable to those of the parents

Coffspring performs better than the average of the parents

Doffspring cannot survive adverse environmental conditions

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Question 192

waec 2018

Which of the following plants is not a pasture grass?

APennisetum purpureum

BAxonopus compressus

CStylosanthes gracilis

DPanicum maximum

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Question 193

waec 2018

Thinning is a farm operation in which

Aempty spaces where seeds did not germinate are replanted

Bthe number of seedlings per stand is reduced to one or two

Cfertilizers and manures are applied to crops

Deffort is made to control pests

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Question 194

waec 2018

A groundnut variety produces a steady yield of 350kg per hectare. What will be the yield of the variety on a 10-hectare farm?

A35kg

B350kg

C3,500kg

D7,000kg

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Question 195

waec 2018

Which of the following crops is usually classified as a vegetable?

ALycopersicon esculentum

BAnanas sativa

CHevea brasiliensis

DTheobroma cacao

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Question 196

waec 2018

Which of the following statement describes an advantage of underground drainage? It

Aallows for free movement of farm machinery

Bchecks the growth of weeds

Cimproves soil texture

Dincreases organic matter content of soil

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Question 197

waec 2018

The use of inorganic fertilizer is preferable to organic manure because inorganic fertilizer

Aimproves soil structure

Breleases nutrients to the soil faster

Creduces leaching of soil nutrients

Dimproves soil water holding capacity

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Question 198

waec 2018

Which of the following practices does not replenish lost soil nutrients?

Acrop rotation

Bfallowing

CLiming

DBush burning

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Question 199

waec 2018

A beneficial effect of bush burning on the soil is the

Areduction of soil microbial activities

Bexposure of soil surface to erosion

Cdestruction of weed seeds

Dimproves soil water holding capacity

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Question 200

waec 2018

The purpose of the part labelled I in the experiment illustrated above is to

Aallow proper aggregation of soil particles

Ballow even evaporation of water

Cprevent water from escaping

Ddistribute water around the soil

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