WAEC Agricultural Science 1994 Past Questions

Agricultural production in West Africa can be improved by the following except

A.ability of farmers to purchase mofern farm implements
B.expansive irrigation of farmlands
C.adoption and proper application of tested findings of agricultural research
D.continued adoption of the communal land holdig system
E.adequate supply of improved seeds and livestock to farmers

(a) Define the term land tenure system and give four examples. (b) (i)Discuss briefly Land Use Decree (ii) State two advantages and two disadvantages of the decree

Theory

Question 2

Farm settlement scheme is an example of agricultural

A.programme
B.policy
C.commodity
D.subsidy
E.regulation

Objective

Question 2

(a) What is farm surveying? (b) (i) List six surveying instruments. (ii) Write short notes on any four surveying instruments listed in (i)

Theory

Question 3

Which of the following is not a problem of agricultural development?

A.inadequate land availability
B.lack of finance
C.improved and adequate storage facilities
D.lack of basic amenities and infrastructure
E.poor transportation facilities

Objective

Question 3

(a) Define the term irrigation. (b) List six sources of water for irrigation- (c) Give three reasons why irrigation schemes are necessary in Nigeria. (d) State two similarities and three differences between sprinkler and surface irrigation

Theory

Question 4

land use is influenced by the following except

A.population density
B.population growth
C.climatic conditions
D.topography
E.fallowing

Objective

Question 4

List and discuss briefly four climatic factors that affect agricultural production in Nigeria

Theory

Question 5

The response of crops to day-length is referred to as

A.photoperiodism
B.photosynthesis
C.photogenesis
D.venalization
E.volatilisation

Objective

Question 5

(a) Explain what is meant by natural grassland. (d) State five characteristics of natural grassland (c) List four grasses and three pasture legumes commonly found in natural grasslands.

Theory

Question 6

Coal is an example of

A.igneous rock
B.metamorphic rock
C.plutonic rock
D.volcanic rock
E.sedimentary rock

Objective

Question 6

(a) Define the term Taungya system. (b) State five conditions that favour the practice of taungya system in Nigeria. (c) State two advantages of the system to each of the following: (i) farmer; (ii) foresters.

Theory

Question 7

What is the percentage of water content of a soil sample if the mass of fresh soil is 180 gm and mass of dried soil is 120 gram?

A.45.5%
B.40.4%
C.38.3%
D.35.3%
E.33.3%

Objective

Question 7

Describe briefly the processses of egg formation in poultry.

Theory

Question 8

Prolonged application of ammonium sulphate fertilizer on a given soil can lead to the

A.decay of tuber and root crops
B.increase in beneficial soil micro-organisms
C.increase in soil acidity
D.damage of soil structure
E.increase in the alkalinity of soil

Objective

Question 8

With the aid of a labelled diagram, describe digestion in a named ruminant.

Theory

Question 9

Which of the following factors may be considered in adopting a particular method of irrigation?

A.topography of the land
B.characteristics of the soil
C.type of farming system
D.type of crops to be grown
E.size of land to be irrigated

Objective

Question 9

Write short notes on the following in agricultural production. (a) land: (b) capital, (c) labour (d) farm manager.

Theory

Question 10

Land is considered to be an essential factor in agricultural production because

A.it is most abundant
B.it is important for development
C.crop, fisheries and livestock production are practised on land
D.it cannot be increased in quatity
E.crop production is usually done on land

Objective

Question 10

(a) Define the terms demand and supply and state the law governing them. (b) Explain the implications of demand and supply on agricultural production

Theory

Question 11

The type of crop planted and the livestock raised in any given area depends primarily on the

A.type of climate
B.physical factors
C.biotic factors
D.socio-economic factors
E.edaphic factors

Objective

Question 12

In which of the following ways are metamorphic rocks formed?

A.By physical distintegration of igneous rocks
B.by alternative layering of particles of sedimentary and igneous rocks
C.by the combination of igneous and sedimentary rocks
D.through biological change of original rock
E.through chemical changes caused by heat and pressure

Objective

Question 13

A moistened soil sample which can be moulded to form a smooth continuous ring is characteristic of

A.sandy clay
B.heavy clay
C.loamy sand
D.clay loam
E.heavy loam

Objective

Question 14

Which of the following sets of farm operations can use electricity as a source of power?

A.clearing, tilling and levelling
B.processing, storage and ploughing
C.processing, storage and extraction
D.harrowing, winnowing and storage
E.winnowing, ridging and shelling

Objective

Question 15

The best source of power for weeding in nursery is

A.animal
B.man
C.machine
D.wind
E.sun

Objective

Question 16

Shellers are used to remove

A.bracts from grains
B.grains from cobs
C.husk from grains
D.dirt from grains
E.cobs from stalks

Objective

Question 17

Mechanization would remain uneconomical in West Africa as long as

A.farmers are small and scattered
B.land acquisition remains in the hands of farmers
C.basic amenities are inadequate
D.machines are not available for farming operation
E.extension officers are not provided with transport facilities

Objective

Question 18

The primary product of ginger is the

A.rhizome
B.fruit
C.seed
D.flower
E.leaf

Objective

Question 19

The main purpose of including leguminous crops in pastures is to serve as a source of

A.proteins
B.vitamins
C.minerals
D.carbohydrates
E.green vegetables

Objective

Question 20

Which of the following is a primary product of forest trees?

A.paper
B.particle board
C.timber
D.cardboard
E.pulp

Objective

Question 21

A fungicide is important in maize production because it

A.prevents the attack of causative organisms generally
B.makes maize seeds more viable
C.assists in the control of corn smut
D.scares away mammalian peats
E.prevents the attack by stem borers

Objective

Question 22

Yam setts are usually planted with cut surface

A.downward and sloping at 45 degrees
B.downwards and vertically at 90 degrees
C.upward and vertically at 90 degrees
D.upwards and sloping at 45 degrees
E.sideways and sloping at 90 degrees

Objective

Question 23

The National Tree-planting campaign in Nigeria is an example of

A.regeneration of forest
B.afforestation
C.taungya farming
D.forest reservation
E.forest degeneration

Objective

Question 24

The most devastating and commonest pests of cassava foliage are

A.leaf worms
B.weaver birds
C.rodents
D.variegated grasshoppers
E.aphids

Objective

Question 25

Which of the following crop is tolerant to both poor and rich friable soils?

A.onions
B.cocoa
C.tomato
D.cassava
E.rice

Objective

Question 26

Which of the following plant parts or modification is not suitable for propagation of pastures?

A.stem cutting
B.seeds
C.leaves
D.stolons
E.rhizomes

Objective

Question 27

The stages of life cycle of locust are

A.egg-larva-pupa-adult
B.egg-nymph-adult
C.egg-caterpillar-pupa-adult
D.egg-nymph-pupa-adult
E.egg-larva-nymph

Objective

Question 28

Fertilization in crops leads to the formation of

A.gamets
B.pollen grain
C.zygote
D.pollen tube
E.endosperm

Objective

Question 29

Which of the following is not normally a pasture crop?

A.mucuna
B.centrosema
C.stylosanthes
D.giant star grass
E.guinea grass

Objective

Question 30

The damage to the stem of maize plants resulting in hollowness and lodging is most likely caused by

A.redents
B.grasscutters
C.stem borers
D.weevils
E.thrips

Objective

Question 31

The planting depth of rice grain is about

A.2-4 cm
B.6-8 cm
C.8-10 cm
D.10-12 cm
E.12-14 cm

Objective

Question 32

Which of the following is the botanical name for guinea grass?

A.panicum maximum
B.pennisetum pupureum
C.eleusine indica
D.pennisetum maximum
E.panicum pupureum

Objective

Question 33

The benefits derived from wildlife conservation practices include the following except

A.perservation of rera spacies of wild animals
B.source of food for man
C.tourist attraction
D.preservation of land for future use
E.source of foreign exchange

Objective

Question 34

What is the effect of applying pressure on a ring inserted through the nostril of a bull?

A.breaking of the septum
B.reducing the resistance of the bull
C.easing the flow of mucus
D.facilitating the feeding of the bull
E.detecting cow on heat by the bull

Objective

Question 35

Which of the following statement on ration is not correct?

A.chick ration is used to feed chicks from a day-old to six weeks old
B.growers ration is used to feed growing chicks between the ages of 5 and 17 weeks
C.layer ration is used to feed layers
D.starter ration is used for feeding broiler chicks from day-old to six weeks old
E.finisher ration is for feeding chicks from day-old to market size