WAEC - Agricultural Science (2022)

1
To reduce rural-urban migration, the government should
Antwort
(B)
provide social infrastructure
2
The establishment of cooperative farming is encouraged by governments because it
Antwort
(C)
enables individual farmers to acquire capital
3
A non-governmental organization involved in agricultural development in West Africa is
Antwort
(A)
Operation Feed the Nation
4
The diagram below illustrates a farm implement. Use it to answer this question.

The illustrated farm implement i used for
Antwort
(B)
breaking up soil into clods
5

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
Antwort
(C)
III
6
The diagram below illustrates a farm implement. Use it to answer this question.

The function of the part labelled II is to
Antwort
(A)
remove soil
7
A combine harvester can be used simultaneously to harvest
Antwort
(D)
cereals and winnow grains
8
Ranging poles used in farm surveying have characteristic
Antwort
(C)
red and white bands
9
Decomposition of soil organic matter is mainly caused by
Antwort
(A)
bacteria
10
The main factors responsible for rock weathering in the desert are high temperature and
Antwort
(B)
water
11
A difference between physical and chemical weathering is that
Antwort
(B)
the mineral composition of rock is changed in chemical weathering.
12
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.
Antwort
(A)
22cm³
13
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
Antwort
(B)
42.31%
14
The diagram below illustrates a tool used to analyse a soil sample in an experiment. Use it to answer this question.

The aim of the experiment is to determine the soil
Antwort
(B)
texture
15

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
Antwort
(D)
fine sand
16

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
Antwort
(B)
0.02 - 0.2 mm
17
Potassium deficiency in cereal crops Is indicated by
Antwort
(A)
browning of leaves Trom the tips and margins
18
Nitrogen is important in plants because it is mainly needed in
Antwort
(C)
leaf formation
19
Water can be conserved in the soil by
Antwort
(A)
mulching, strip cropping and cover cropping
20
Monocotyledonous crops include
Antwort
(A)
oil palm, rice, and plantain.
21
Swampy lands are most suitable for growing
Antwort
(B)
rice
22
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?
Antwort
(D)
5,400 plants
23
The practice of placing the correct number of seeds in the soil with definite intra-row and inter-row spacing is called
Antwort
(A)
seed drilling
24
Which of the following groups of crops will thrive in areas with high rainfall?
Antwort
(D)
Cocoa, oil palm and rubber
25
Capping is a cultural practice carried out in the cultivation of
Antwort
(B)
cassava
26
Damping of disease of tomato could be controlled by
Antwort
(A)
staking
27
The most common way of controlling weeds in tree crop plantations is by
Antwort
(D)
slashing
28
Which of the following crops is correctly matched with a disease that affects it?
Antwort
(A)
Maize - smut
29
Soil-borne diseases could be controlled in the nursery by
Antwort
(C)
heat treatment
30
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
Antwort
(B)
gummosis
31
The diagram below illustrates the digestive system of a farm animal. Use it to answer this question.

The diagram illustrates the digestive system of a
Antwort
(A)
chicken
32
The diagram below illustrates the digestive system of a farm animal. Use it to answer this question.

The part labelled lll is the
Antwort
(B)
caecum
33

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
Antwort
(D)
IV
34
Lactation normally occurs
Antwort
(C)
after gestation.
35
A by-product of all livestock is
Antwort
(B)
horn
36
Removal of needle teeth is important in the management of
Antwort
(D)
piglets
37
Which of the following farm animals will browse more on plants in a pasture?
Antwort
(A)
Goats
38
The main reason for castrating farm animals is to
Antwort
(B)
make the animal sterile
39
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
Antwort
(B)
I and III only
40
If 200 layers require 25 kg of layer mash per day, calculate the quantity of feed required by 1,000 layers per day.
Antwort
(C)
80kg
41
Salt licks are provided for grazing animals to
Antwort
(A)
make the pasture palatable.
42
The correct order of arrangement of ration for piglets from day old is
Antwort
(B)
creep>weaners>growers>finisher.
43
In farming enterprise, short term loans are used to
Antwort
(D)
purchase agrochemicals

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

Antwort

(B)

a production record

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.

Antwort

(D)

252