2015 WAEC (WASSCE) Agricultural Science Past Questions & Answers

Question 1

The propety of soil which cannot easily be change by a famer is the

Accepted Answer

C. Texture

Answer

A. Porosity

Answer

B. Structure

Answer

D. Acidity

Question 2

Farm surveying equipment include the following except

Accepted Answer

D. Spade

Answer

A. Abney level

Answer

B. Compass

Answer

C. Gunter's chain

Question 3

The extra oyster shell meal supplied to breedinghens\

Accepted Answer

C. Aids in hardening egg shell

Answer

A. Prevents excess abdominal fat

Answer

B. Prevents anaema

Answer

D. Shortens the incubation period of eggs

Question 4

Callosobruchus maculatus is a common pest of

Accepted Answer

D. Cowpea

Answer

A. Sorghum

Answer

B. Rice

Answer

C. Mazie

Question 5

If a sow conceived on the 5th of june in particular year, it will probably farrow the same year on

Accepted Answer

C. 28th September

Answer

A. 8th Aubgust

Answer

B. 18th September

Answer

D. 28th October

Question 6

The act of parturtion in rabbit is known as

Accepted Answer

D. Kindling

Answer

A. Calving

Answer

B. Lambing

Answer

C. Farrowing

Question 7

The mating of a white fulani bull and an N'dama cow could be termed

Accepted Answer

D. Cross breeding

Answer

A. Inbreeding

Answer

B. Line breeding

Answer

C. Outbreeding

Question 8

The sustem in which a farmer uses a piece of land for a period and abandons it for another land is called

Accepted Answer

C. Shifting cultivation

Answer

A. Crop rotation

Answer

B. Mix cropping

Answer

D. Ley farming

Question 9

Tabacco belongs to the group of crops called

Accepted Answer

C. Stimulants

Answer

A. Fibres

Answer

B. Beverages

Answer

D. Cereals

Question 10

Crop which are primarily grown to provide food for farm animals are

Accepted Answer

C. Forages

Answer

A. Legumes

Answer

B. Weeds

Answer

D. Grasses

Question 11

Established pasture cannot be harvested by

Accepted Answer

C. Using combine harvester

Answer

A. Using the mower

Answer

B. Zero grazing

Answer

D. Cutting with sickle

Question 12

The digestive function of the rumen in ruminant nutrition is enchanced by the

Accepted Answer

B. Presence of micro -organisms

Answer

A. Absorption of water

Answer

C. Absorption of food nutrients

Answer

D. Retention of unwanted foreign materials

Question 13

Which of the following equipment is a fame implement?

Accepted Answer

C. Mower

Answer

A. Dryer

Answer

B. Sheller

Answer

D. Mistblower

Question 14

A soil sample with a pHof 4.5 is said to be

Accepted Answer

A. Acidic

Answer

B. Alkaline

Answer

C. Neutral

Answer

D. Fertile

Question 15

Iron is important in the diest of livestock for

Accepted Answer

D. Blood production

Answer

A. Teeth formation

Answer

B. Fearther production

Answer

C. Hanir formation

Question 16

The use of pathogens to control dodder weeds is a

Accepted Answer

C. Biological method

Answer

A. Physcial methos

Answer

B. Mechanical method

Answer

D. Cultural method

Question 17

Which of the animal product is used in the production of buttons?

Accepted Answer

D. Hom

Answer

A. Skin

Answer

B. Fur

Answer

C. Bone

Question 18

A peridic maintenance activity carried out on through farm tractor is

Accepted Answer

C. Changing of engine oil

Answer

A. Checking of radiator water

Answer

B. Checking of lyre pressure

Answer

D. Cleaning after use

Question 19

Maize is a popular crop in West Africa because it

Accepted Answer

B. Has multiple uses

Answer

A. is a cereal

Answer

C. Is of high nutritional value

Answer

D. Was introduced from Wurope

Question 20

The duration of the oestrus cycle of sow is

Accepted Answer

A. 14 - 28 days

Answer

B. 6 - 10 days

Answer

C. 3 - 5 days

Answer

D. 1 - 2 days

Question 21

Which of the following rocks is sedimantary?

Accepted Answer

A. Limestone

Answer

B. Gabbro

Answer

C. Granite

Answer

D. Marble

Question 22

The annual depreciation of the implement is

Accepted Answer

C. #2,050

Answer

A. #4,300

Answer

B. #3,125

Answer

D. #1075

Question 23

A farmer bought a farm implement for 12,500 in 2007 . At the end of the fourth year he sold if for #4,300. Use information to answer question Calculate the total depreciation of the implement

Accepted Answer

B. #8,200

Answer

A. #16,800

Answer

C. #3,125

Answer

D. #1,075

Question 24

Natural immunity to diseases in calves is acquired through maccess to

Accepted Answer

B. Colostrum

Answer

A. Vaccine

Answer

C. Balanced diet

Answer

D. Salt licks

Question 25

Subsistance farme rs mostly practice

Accepted Answer

C. Mixed cropping

Answer

A. Monoculture

Answer

B. Monocroppin

Answer

D. Crop rotation

Question 26

The effect of fertilizing a fish pond with compost manure on phytoplankton population and fish yield is such that

Accepted Answer

D. Phytoplankton population increases as a fish yield increases

Answer

A. Phytoplankton population decreases as fish yield drecreases

Answer

B. Phytoplankton population decreases while fish yield increases

Answer

C. Phytoplankton population increases while fish yield drecreases

Question 27

The term fingerling refers to a young

Accepted Answer

B. Fish

Answer

A. Rabbit

Answer

C. Goat

Answer

D. Turkey

Question 28

A farmer continuously applies sulphate of ammonia to his faemland for many years, the resulatant soil solution is most likely to

Accepted Answer

B. Change blue litmus paper to re

Answer

A. Leave blue litmus paper unchanged

Answer

C. Change red litmus paper to blue

Answer

D. Be rich in soil microbes

Question 29

Which of the following statements describe the impact of land degradation? I. Increased availablity of fuel wood II. Reduction in livestock production III. Decrease in agricultural productivity IV. Pollution of water bodies

Accepted Answer

C. II, III and IV only

Answer

A. I,II and III only

Answer

B. I,III and IV only

Answer

D. I, II, III and IV

Question 30

Which of the following sources of farm power is most verstile in West Africa?

Accepted Answer

B. Animal

Answer

A. Biogas

Answer

C. Wind

Answer

D. Water

Question 31

Which of the following developments could result from defoiratation?

Accepted Answer

A. Increase in soil erosion

Answer

B. Increase in soil Ph

Answer

C. Decrease in soil temperature

Answer

D. Decrease in soil Prosity

Question 32

Piercing and sucking insect pests possess

Accepted Answer

D. Probosces

Answer

A. Maxillae

Answer

B. Mandibles

Answer

C. Labrums

Question 33

Sexual propagation involves the use of

Accepted Answer

B. Seeds

Answer

A. Bulbs

Answer

C. Cuttings

Answer

D. Vines

Question 34

Viral disease of crops can best be controlled through

Accepted Answer

B. Planting reistant varieties

Answer

A. Vector control

Answer

C. Spraying insecticides

Answer

D. Sterilizing farm equipment

Question 35

Application of water to the subsoil through perforated pipes is known as

Accepted Answer

B. Subsurface irrigation

Answer

A. Flooding irrigation

Answer

C. Spinkler irrigation

Answer

D. Overhead irrigation

Question 36

Farm mechanization does not

Accepted Answer

C. Promote employment

Answer

A. involve the use of motorized equipment

Answer

B. Require much capital

Answer

D. Involve the use of heavy machinery

Question 37

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

Accepted Answer

C. Rented for a period

Answer

A. Give as compensation

Answer

B. Purchased on credit

Answer

D. Given as a gift

Question 38

Which of the following compounds can be used to seal soil pores and prevent loss of water in a fish pond?

Accepted Answer

C. Calcium carbonate

Answer

A. Suphur (IV) oxide

Answer

B. Ammonium suphate

Answer

D. Potassium hydroxide

Question 39

A fungus known as phytophthora palmivora is responsible for

Accepted Answer

C. Blackpd disease of cocoa

Answer

A. Panama disease of banana

Answer

B. Blackarm diease of kola

Answer

D. Bloosom -end rot of tomato

Question 40

Soil profile important in agriculture because it

Accepted Answer

C. Gives indication of types of cropsto grow

Answer

A. Determines the soil catena

Answer

B. Determines the type of the landtenure system

Answer

D. Promotes the weathering of rocks

Question 41

What is the percentage water content of soil sample which weighed 180g when fresh and 120g when oven-dried

Accepted Answer

C. 33.33%

Answer

A. 20.14%

Answer

B. 25.00%

Answer

D. 60.00%

Question 42

A socio-cultural factor affecting land availability for agriculture include use of land for

Accepted Answer

D. Building religious houses

Answer

A. Constructin road

Answer

B. Building houses

Answer

C. Building factormies

Question 43

Crop selection is adantageous because

Accepted Answer

A. Seeds are collected from stands with desirable traits

Answer

B. Expertise is required in carring out the process

Answer

C. The breeder'd patience is being tasked

Answer

D. The process is time consuming

Question 44

Which of the following methods is inapropriate when introducing a new variety of rice farmers?

Accepted Answer

B. Circular letters

Answer

A. Farners' cooperarive society

Answer

C. Demonstrations

Answer

D. Field trips

Question 45

If the spacing of maize is 0.9m by 0.3m and one seed is sown per stand, what will be the popullation of maize plants on a hectare of farmland?

Accepted Answer

C. 37,037

Answer

A. 74,074

Answer

B. 54,000

Answer

D. 27,000

Question 46

A farmer obtained a of #250,000 at a simple interest rate of 8% per annum to be paid in two years what would be the interest the farmer will pay on the loan?

Accepted Answer

B. #40,000

Answer

A. # 20,000

Answer

C. #250,000

Answer

D. #400,000

Question 47

Which of the following organisms is not an endoparasite?

Accepted Answer

C. Tick

Answer

A. Roundworm

Answer

B. Liverfluke

Answer

D. Cestode

Question 48

The following crops require shade trees at the seeding statge except

Accepted Answer

D. Oryza sativa

Answer

A. Theobroma cacao

Answer

B. Coffea spp

Answer

C. Elaeis guineensis

Question 49

Organisms which may be benefical to crop include

Accepted Answer

B. Bacteria

Answer

A. Nematodes

Answer

C. Viruses

Answer

D. Protozoa

Question 50

The demand for cassava is not affected by

Accepted Answer

A. Cost of production

Answer

B. Teste of consumers

Answer

C. Change in income

Answer

D. Price of Cassava

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