Agricultural Science past questions: WAEC SSCE 2022

47 objective questions, with answers. Free to read and practise.

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47 questions, one at a time, marked as you go or at the end. No account needed.

1.
A by-product of all livestock is
1. A.hide
2. B.horn
3. C.milk
4. D.meat
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Answer: B horn
2.
A combine harvester can be used simultaneously to harvest
1. A.legumes and apply fertilizer
2. B.grains and eradicate weeds
3. C.tubers and distribute fertilizer
4. D.cereals and winnow grains
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Answer: D cereals and winnow grains
3.
A difference between physical and chemical weathering is that
1. A.there is a change in the mineral composition of rock in physical weathering
2. B.the mineral composition of rock is changed in chemical weathering
3. C.carbonation is necessary in physical weathering
4. D.wind is necessary in chemical weathering
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Answer: B the mineral composition of rock is changed in chemical weathering
4.
A non-governmental organization involved in agricultural development in West Africa is
1. A.Operation Feed the Nation
2. B.River Basin Development Authority
3. C.Agricultural Development Project
4. D.International Institute of Tropical Agriculture
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Answer: A Operation Feed the Nation
5.
Capping is a cultural practice carried out in the cultivation of
1. A.carrot
2. B.cassava
3. C.potato
4. D.yam
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Answer: B cassava
6.
Damping of disease of tomato could be controlled by
1. A.staking
2. B.supplying
3. C.thinning
4. D.pruning
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Answer: A staking
7.
Decomposition of soil organic matter is mainly caused by
1. A.bacteria
2. B.algae
3. C.fungi
4. D.nematodes
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Answer: A bacteria
8.
If 200 layers require 25 kg of layer mash per day, calculate the quantity of feed required by 1,000 layers per day.
1. A.5kg
2. B.40kg
3. C.80kg
4. D.125kg
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Answer: C 80kg
9.
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?
1. A.18,519 plants
2. B.16,667 plants
3. C.11,111 plants
4. D.5,400 plants
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Answer: D 5,400 plants
10.
In farming enterprise, short term loans are used to
1. A.purchase farm machinery
2. B.construct new farm buildings
3. C.construct an irrigation dam
4. D.purchase agrochemicals
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Answer: D purchase agrochemicals
11.
Lactation normally occurs
1. A.at the onset of conception
2. B.at the onset of puberty
3. C.after gestation
4. D.after mating
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Answer: C after gestation
12.
Monocotyledonous crops include
1. A.oil palm, rice, and plantain
2. B.cowpea, pepper and tomato
3. C.garden egg, cassava and mango
4. D.rubber, cashew and orange
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Answer: A oil palm, rice, and plantain
13.
Nitrogen is important in plants because it is mainly needed in
1. A.fruit formation
2. B.root development
3. C.leaf formation
4. D.cell division
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Answer: C leaf formation
14.
Potassium deficiency in cereal crops Is indicated by
1. A.browning of leaves Trom the tips and margins
2. B.yellowing of younger leaves
3. C.purpling of leaves
4. D.white and irregular spots on leaves
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Answer: A browning of leaves Trom the tips and margins
15.
Ranging poles used in farm surveying have characteristic
1. A.green and white bands
2. B.blue and white bands
3. C.red and white bands
4. D.black and red bands
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Answer: C red and white bands
16.
Removal of needle teeth is important in the management of
1. A.kids
2. B.lambs
3. C.calves
4. D.piglets
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Answer: D piglets
17.
Salt licks are provided for grazing animals to
1. A.make the pasture palatable
2. B.supply nutrients in pastures
3. C.supplement mineral intake
4. D.provide laxatives
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Answer: A make the pasture palatable
18.
Soil-borne diseases could be controlled in the nursery by
1. A.mulching
2. B.manuring
3. C.heat treatment
4. D.provision of shade
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Answer: C heat treatment
19.
Swampy lands are most suitable for growing
1. A.yam
2. B.rice
3. C.maize
4. D.tomato
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Answer: B rice
20.
The correct order of arrangement of ration for piglets from day old is
1. A.weaners >growers->creep > finisher
2. B.creep>weaners>growers>finisher
3. C.growers>finisher>creep>weaners
4. D.finishers>creep>weaners>growers
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Answer: B creep>weaners>growers>finisher
21.
The diagram above illustrates a farm implement. Use it to answer this question. The part of the illustrated farm implement that enables it to roll over obstacles is labelled
1. A.I
2. B.II
3. C.III
4. D.IV
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Answer: C III
22.
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
1. A.clay
2. B.silt
3. C.coarse sand
4. D.fine sand
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Answer: D fine sand
23.
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
1. A.0.002 - 0.02 mm
2. B.0.02 - 0.2 mm
3. C.0.2 - 2.0 mm
4. D.2.0 mm
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Answer: B 0.02 - 0.2 mm
24.
The diagram above illustrates the digestive system of a farm animal. Use it to answer this question. Digestion of fats takes place in the part labelled
1. A.I
2. B.II
3. C.III
4. D.IV
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Answer: D IV
25.
The diagram above illustrates the digestive system of a farm animal. Use it to answer this question. The diagram illustrates the digestive system of a
1. A.chicken
2. B.turkey
3. C.sheep
4. D.rabbit
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Answer: D rabbit
26.
The diagram below illustrates a farm implement. Use it to answer this question. [img: Open photo] The function of the part labelled II is to
1. A.remove soil
2. B.turn soil
3. C.break clods
4. D.cut stumps
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Answer: A remove soil
27.
The diagram below illustrates a farm implement. Use it to answer this question. [img: Open photo] The illustrated farm implement i used for
1. A.pulverizing soil into fine tilth
2. B.breaking up soil into clods
3. C.gathering top soil
4. D.levelling soil surface
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Answer: B breaking up soil into clods
28.
The diagram below illustrates a tool used to analyse a soil sample in an experiment. Use it to answer this question. [img: Open photo] The aim of the experiment is to determine the soil
1. A.structure
2. B.texture
3. C.mineral matter
4. D.organic matter
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Answer: B texture
29.
The diagram below illustrates the digestive system of a farm animal. Use it to answer this question. [img: Open photo] The part labelled lll is the
1. A.pancreas
2. B.caecum
3. C.small intestine
4. D.large intestine
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Answer: B caecum
30.
The establishment of cooperative farming is encouraged by governments because it
1. A.enables farmers to control soil erosion
2. B.facilitates the use of hand tools
3. C.enables individual farmers to acquire capital
4. D.allows farmers to cultivate small and scattered plots
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Answer: C enables individual farmers to acquire capital
31.
The gross profit of a farm business is the farm's
1. A.net sales less cost of production.
2. B.total sales less operating expenses.
3. C.net sales less taxation.
4. D.total sales less cost of production.
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Answer: D total sales less cost of production.
32.
The main factors responsible for rock weathering in the desert are high temperature and
1. A.animal activity
2. B.water
3. C.wind
4. D.root growth
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Answer: B water
33.
The main reason for castrating farm animals is to
1. A.remove male odour
2. B.make the animal sterile
3. C.increase meat production
4. D.make them lose weight
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Answer: B make the animal sterile
34.
The most common way of controlling weeds in tree crop plantations is by
1. A.crop rotation
2. B.hand pulling
3. C.flooding
4. D.slashing
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Answer: D slashing
35.
The practice of placing the correct number of seeds in the soil with definite intra-row and inter-row spacing is called
1. A.seed drilling
2. B.centrifugal distribution
3. C.precision planting
4. D.seed broadcasting
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Answer: A seed drilling
36.
The table below illustrates a farm record for Goodness Farms in the year 1970. Use it to answer this question.
DATE NUMBER OF HENS TOTAL EGGS COLLECTED TOTAL EGGS SOLD
4th June 362 176 96
5th June 360 199 108
6th June 360 177 48
Calculate the total amount of eggs sold on the farm.
1. A.804
2. B.552
3. C.300
4. D.252
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Answer: D 252
37.
The table below illustrates a farm record for Goodness Farms in the year 1970. Use it to answer this question.
DATE NUMBER OF HENS TOTAL EGGS COLLECTED TOTAL EGGS SOLD
4th June 362 176 96
5th June 360 199 108
6th June 360 177 48
If all the unsold eggs were later sold on 7th June at ₦5.00 per crate, calculate the income from unsold eggs. (Assuming a crate = 30 eggs)
1. A.₦40.00
2. B.₦45.00
3. C.₦50.00
4. D.₦55.00
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Answer: C ₦50.00
38.
The table below illustrates a farm record for Goodness Farms in the year 1970. Use it to answer this question.
DATE NUMBER OF HENS TOTAL EGGS COLLECTED TOTAL EGGS SOLD
4th June 362 176 96
5th June 360 199 108
6th June 360 177 48
The table illustrates
1. A.an inventory record
2. B.a production record
3. C.a labour record
4. D.an input record
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Answer: B a production record
39.
To reduce rural-urban migration, the government should
1. A.establish commodity boards
2. B.provide social infrastructure
3. C.establish tractor-hiring units
4. D.provide extension services to farmers
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Answer: B provide social infrastructure
40.
Use the information below to answer this question. I. Yellowing of leaves II. Raised brown spots on the leaves III. Drying up of leaves IV. Exudation of gum The disease of citrus described above is
1. A.die-back
2. B.gummosis
3. C.tristeza
4. D.blight
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Answer: B gummosis
41.
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
1. A.28.21%
2. B.42.31%
3. C.45.83%
4. D.61.54%
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Answer: B 42.31%
42.
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.
1. A.22cm³
2. B.26cm³
3. C.30cm³
4. D.100cm³
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Answer: A 22cm³
43.
Water can be conserved in the soil by
1. A.mulching, strip cropping and cover cropping
2. B.weeding, strip cropping and clean clearing
3. C.clean clearing, mulching, and strip cropping
4. D.cover cropping, mulching and weeding
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Answer: A mulching, strip cropping and cover cropping
44.
Which of the following crops is correctly matched with a disease that affects it?
1. A.Maize - smut
2. B.Sorghum - scab
3. C.Rice- black arm
4. D.Yam- blast
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Answer: A Maize - smut
45.
Which of the following farm animals will browse more on plants in a pasture?
1. A.Goats
2. B.Cattle
3. C.Pigs
4. D.Sheep
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Answer: A Goats
46.
Which of the following groups of crops will thrive in areas with high rainfall?
1. A.Cotton, cowpea and groundnut
2. B.Millet, maize and cotton
3. C.Guinea com, cowpea and maize
4. D.Cocoa, oil palm and rubber
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Answer: D Cocoa, oil palm and rubber
47.
Which of the following statements about silage are true? I. It has a laxative effect II. is acidic in reaction. III. has a strong aroma when well prepared
1. A.I and II only
2. B.I and III only
3. C.II and III only
4. D.I, II and III
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Answer: B I and III only

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DATE	NUMBER OF HENS	TOTAL EGGS COLLECTED	TOTAL EGGS SOLD
4th June	362	176	96
5th June	360	199	108
6th June	360	177	48