WAEC Agricultural Science 1988 Past Questions

Practice each question, then open it to see the full details.

A piece of land is said to be on lease to a farmer when the land is

A.inherited from the father
B.given to him as a gift
C.given as compensation
D.purchased on credit
E.given for a specified period on rental basis

List and discuss briefly eight factors that militate against the developement of commercial agriculture in Nigeria.

The problems associated with land tenure through inheritance include the following except

A.small land holdings for family members
B.hatred among family members arising from land sharing
C.right of individuals to free use and control of inherited land
D.individuals being restricted to their plots
E.difficulty to sell part of the inherited land

(a) What does mechaniztion mean in Agriculture?

(b) What are the advantages and disadvantages of mechanization?

(c) State and discuss briefly four limitations of mechanization in Agriculture?

soil texture is described as the

A.distribution of the different sizes of soil particles
B.arrangement of soil particles in a soil sample
C.rate at which water moves through the soil
D.degree to which air spaces aerate the soil
E.distribution of soil particles in a sample

Write short notes on the effects of the following farm practices on soil: (a) bush burning, (b) fertlizer application (c) grazing (d) crop rotation

The alternate heating and cooling of rocks result in

A.sublimation
B.volatilization
C.fragmentation
D.solidification
E.sedimentation

(a) State six major uses of land in Nigeria (b) Discuss briefly five factors affecting land availablility for agricultural production

Which of the following factors influence agricultural production is biotic factor?

A.parasite
B.soil PH
C.topography
D.soil texture
E.temperature

(a) List ten common grass and legume species of Nigerian pastures giving their common and botanical names.

(b) Discuss three factors affecting the distribution of pastures in Nigeria

A.a sedimentary rock
B.a wealtered rock
C.mentamorphic rock
D.an igneous rock
E.a plutonic rock

Discuss briefly a named oil crop under the following headings (a) climatic and soil requirements (b) planting date, seed rate and spacing (c) nursery practices (d) harvesting (e) processing and storage

In which layer of the soil profile does most biological activity occur?

A.parent material
B.D-horizon
C.C-horizon
D.B-horizon
E.A-horizon

Write short notes on four nutrient livesock under the following headings (a) composition (b) sources (c) functions

When leaves of crop plants show brownish coloration from the tips of the mid-ribs backward, they are showing deficiency symptom of

A.magnesium
B.zinc
C.nitrogen
D.copper
E.phosphorus

(a) Describe the process of egg-formation in poultry

(b) Enumerate six functions/roles of the reproductive hormones in animals

which of the following farm practices can prevent excessive evaporation from soil surfaces?

A.liming
B.mulching
C.weeding
D.harrowing
E.ploughing

(a) State and discuss briefly four factors of production in Agriculture

(b) List four functions of a farm manager.

Which of the following is not associated with surface irrigation?

A.natural flooding
B.check flooding
C.sprinkler irrigation
D.mole drains
E.tiles

Write short notes on the following as they relate to the marketing of agricultural produce (a) Marketing/commodity Boards (b) Co-operative Societies (c) Middlemen/Wholesalers (d) Producers

Which of the following types of soil contains particles of diameter between 0.02 mm and 2.o mm?

A.sand
B.silt
C.gravel
D.clay
E.stone

A farmer cultivating leafy vegetables will require fertilizers with a relatively high content of

A.calcium
B.magnesium
C.potasssium
D.nitrogen
E.phosphorus

The earthworm is important to the farmer because it

A.improves soil structure
B.improves soil texture
C.destroys soil pathogens
D.adds nutrients to the soil
E.prevents soil erosion

The type of rocks formed from the molten magma is known as

A.sedimentary
B.igneous
C.metamorphic
D.schist
E.sandstone

The relationship between the microorganisms and plant in the nitrogen cycle is best described as

A.parasitism
B.commensalism
C.competition
D.symbiosis
E.saprophytism

The type of energy obtained from the sun for agricultural uses is known as

A.potential energy
B.mechanical energy
C.nuclear energy
D.solar energy
E.kinetic energy

Which of the following implements will be used for the next farm operation after clearing a new farmland?

A.harrow
B.ridger
C.cultivator
D.planter
E.plough

Which of the following cannot be used to rub the metal parts of farm tools before storage?

A.grease
B.plam oil
C.water
D.petroleum jelly
E.spent engine oil

The common surveying equipment for farmland include the following except

A.ranging pole
B.prismatic compass
C.measuring tape
D.gunter's chain
E.spade

An example of fungal disease of stored grains is

A.rosette
B.wilt
C.soft rot
D.damping off
E.mould

A small plot of land where intensive cultivation is practiced to produce vegetables is generally referred to as

A.an orchad
B.a plantation
C.a nursery
D.a garden
E.a pasture

Which of the following plants is not classified as forage grass?

A.giant star
B.guinea grass
C.elepant grass
D.gamba grass
E.stylo

The plant-a-tree-campaign of the Federal Government of Nigeria is a way of encouraging forest

A.regulation
B.exploration
C.exploitation
D.integration
E.regeneration

Which of the following is not a method of controlling pests?

A.quarantine
B.crop rotation
C.fumigation
D.trapping
E.mulching

The most effective method of controlling or preventing viral diseases in plants is by

A.planting resistant varieties
B.spraying crops regularly
C.burning affected crops
D.practising crop rotation
E.treating seeds with chemicals

Reduction of ten seedlings of pawpaw to two per stand is referred to as

A.pruning
B.thinning
C.uprooting
D.weeding
E.spacing

Which of the following describes the steps in making hay?

A.cut-sun-bale
B.dry-silage-silo
C.soilage-ferment-cut
D.cut-graze-paddock
E.bale-dry-silage

A situation where only specified trees in a forest reserve are cut down is known as

A.selection
B.afforestation
C.reforestation
D.selective exploitation
E.deforestation

The causative organism of maize rust is

A.a fungus
B.a virus
C.a bacterium
D.an insect
E.a nematode

The reproductive cells of crops are called

A.gametes
B.genes
C.chromosomes
D.anthers
E.zygotes

Which of the following fruits is a capsule?

A.okra
B.groundnut
C.mango
D.coconut
E.apple

Birds are important pests of

A.tree crops
B.legumes
C.cereal
D.vegetable crops
E.stored produce

The agent of controlled pollination in plants is

A.wind
B.insect
C.man
D.bird
E.water

Ginning is the process of

A.extracting cotton seed oil
B.separating fibres from the bark of kena
C.grinding cotton seeds
D.separating cotton fibre from its seed
E.converting cotton lint into yarn

The groundnut rosette virus is transmitted by

A.aphid
B.mealy bug
C.wind
D.rainsplash
E.soil

Which of the following farm animals possess a pair of caeca?

A.pigs
B.cattles
C.sheep
D.rabbits
E.fowls

The head of the tapeworm is known as the

A.sucker
B.rostellum
C.scolex
D.hook
E.segment

Which of the following is not a function of the ruminal microorganism?

A.digestion of cellulose
B.conversion of plant proteins into microbial protein
C.production of vitamin B
D.production of gas in the rumen
E.eructation of the ruminal gas

Which of the following factors would you consider the least important for the successful incubation of eggs?

A.light
B.temperature
C.ventilation
D.relative humidity
E.turning of the egg

In which area of Nigeria is the kuri breed of cattle commonly found?

A.borno
B.sokoto
C.plateau
D.obudu
E.oyo north