NECO Agricultural Science Questions and Answers 2022/2023 (Theory and Objectives)

2022 NECO Agric Questions and Answers. I will provide you free access to the NECO Agricultural Science objective and theory questions. You’ll also learn how NECO Agric questions are set, as well as other relevant NECO examination details.

NECO Agricultural science questions and answers

If you are also looking for NECO possible questions and answers, scroll down and read it below. If are also looking for past agricultural science questions, it is also for you.

See also:

NECO Agric Essay And Objective Questions and Answers 2022 (EXPO)

The NECO Agric Science answers will be posted here as soon as it comes out. Please save this page and come back later. If you are interested in NECO Agriculture RUNZ, you are in the right place or you can send us a message Expo WhatsApp group.

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NECO Agric Objective Answers (2021 Answers)







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NECO Agric Theory Answers 2022

2021 Answers


No (1a)

(i)Source of Livelihood: The main source livelihood of many people is agriculture. Approximately 70 % of the people directly rely on agriculture as a mean of living.

(ii)Contribution to National revenue: Agriculture is the main source of national income for most developing countries. However, for the developed countries, agriculture contributes a smaller per cent age to their national income.

(iii)Supply of Food as well as Fodder: Agricultural sector provides fodder for domestic animals. Cow provides people with milk which is a form of protective food. Moreover, livestock also meets people’s food requirements.

(iv)Significance to the International Trade: Agricultural products like sugar, tea, rice, spices, tobacco, coffee etc. constitute the major items of exports of countries that rely on agriculture. If there is smooth development practice of agriculture, imports are reduced while export increases considerably.

(v)Source of Raw Material; The main source of raw materials to major industries such as cotton and jute fabric, sugar, tobacco, edible as well as non-edible oils is agriculture. Moreover, many other industries such as processing of fruits as well as vegetables and rice husking get their raw material mainly from agriculture.


(i)Land tenure system: The type of land tenure system (communual) does not allow for large farm holdings suitable for mechanisation.

(ii)Scattered farm holdings: Scattered farm holdings are also not conducive or economical for mechanisation, especially in Nigeria.

(iii)Poverty of farmers: Most farmers, especially in Nigeria are very poor and cannot afford the cost tractors and farm implements.

(iv)Inadequate facilities (machinery): The facilities or machinery for fabricating and repairing farm implements are grossly insufficient where they are available.

(v)Bad topography: The topography of most Nigeria landscape is too rough and unconducive for farm mechanisation.


(i)Inadequate finance
(ii)Poor infrastructure
(iii)Land tenure system
(iv)Poor technical support
(v)Unpredictable weather
(viPoor disease control methodology


No (3ai)

Heterotropism is the ability to produce organic material only from organic carbon sources obtained from animal or plant biosynthesis.


(i)Biotic component
(ii)Abiotic component


(i)Industrial use
(ii)Construction purpose


(i)It does not include any fossil deposits.
(ii)Most of the igneous forms include more than one mineral deposit.
(iii)They can be either glassy or coarse.
(iv)These usually do not react with acids.




(i)helps to grow agricultural crops, and maintain landscapes.

(ii)helps to grow agricultural revegetate disturbed soils in dry areas and during periods of less than average rainfall.

(iii)it also help in controlling the amount of water can be supplied through artificial means such as pipes, ditches, sprinklers etc.

(iv)It also help plant absorb mineral nutrients from the irrigated soil. In other words it is essential for the general growth of the plant.



Crop Improvement Is The Breeding Of New Varieties Of Crop That Will Perform Better Than The. Older Ones


(i)To improve the quality of produce.
(ii)To increase crop yield.
(iii)To adapt crops to adverse climatic conditions.
(iv)To induce resistance to pests and diseases in crop plants.
(v)To conserve land. resources.


(i)Use of prepared beds.
(ii)Use of nylon bags.


(i)population growth
(ii)land availability
(iii)Farm labour supply





(i)It helps in saving the feed and water.
(ii)It brings about uniformity of the stock.
(iii)It reduces the cost of production and increases the farmer’s profit.


(i)they are grazed by domestic livestock or wild animals.
(ii)Rangelands primarily native vegetation

iii)Rangelands do not include forests lacking grazable understory vegetation.


(i)Completely drain water from pond
(ii)Remove any fish and other organisms
(iii)Remove debris / weed / silt accumulation

(iv)Expose pond bottom to dry


Rinderpest virus


by direct contact


(i)loss of appetite.


(ii)Separation of infected animals



-Farmily Labour-
(i)It is cheap
(ii)Farm size are usually small


-Working Capital-
(i)Short-Term Needs
(ii)Circular Movement


(i)Shortage of supply; This is because lowered prices can lead to a sudden rise in demand that many producers may find very hard to meet. Ultimately, it can lead to very high demand that causes an increase in prices.

(ii) Difficulty in measuring success; if the government were to make a report of its success in Agricultural production subsidies, it would be a different story. This is because it is hard to quantify the success of subsidies.

(iii) Higher taxes; the government raise funds to the farms and Agricultural production agency to use for subsidizing industries? Of course, by imposing higher taxes. So, it is the people who provide the means to enable the government to subsidize industries.

(iv) market cycle towards farm subsidies; Raising the income while prices are rising will eventually raise commercial and industrial costs, causing the final products to lose their competitiveness in the international market.


(i) Directs and coordinates worker activities, such as planting, irrigation, chemical application, harvesting, grading, payroll, and record keeping.

(ii) Contracts with farmers or independent owners for raising of crops or for management of crop production.

(iii) Coordinates growing activities with those of engineering, equipment maintenance, packing houses, and other related departments.


(i) This strategy improves the understanding of complex skills and principles.

(ii) Students can pay their attention and follow along with the learning process.

(iii) Knowledge becomes permanent because this method requires different human senses.

(iv) Students are motivated to study and gain necessary skills.

(v) The psychomotor objective is easily achieved through this method.

NECO Agriculture likely Questions and Answers

Disclaimer: The questions below are not exactly 2022 NECO Agric science questions and answers but possible NECO Agric repeated questions and answers.

These questions are strictly for practice. The 2021 NECO Agric expo will be posted on this page on the day of the NECO Agriculture examination. Keep checking and reloading this page for the answers.

 1. Oestrogen in female animals is not responsible for

A. development of secondary sexual characteristics

B. on set of heat period

C. milk let – down after parturition

D. development of udder

2. A beef cow gained 75 kg over a period of two months and two days. What is its average weight gain?

A. 0.83 kg

B. 1.21 kg

C. 1.28 kg

D. 2. 25kg

3. A disadvantage of natural incubation is that

A. the eggs cannot be candled

B. the chicks are less healthy

C. the brooding hens sometimes abandon the eggs

D. it takes a longer time for eggs to hatch

4. Ruminants fed on dried grasses are given feed supplements to

A. increase in water intake

B. provide bulk to feed

C. reduce microbial activity

D. provide deficient nutrients

5. Which of the following animal disease is not associated with malnutrition?

A. Aspergillosis

B. Acidosis

C. Milk fever

D. Rickets

6. 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

7. 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

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

A. grease

B. palm oil

C. water

D. petroleum jelly

E. spent engine oil

9. 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

10. An example of fungal disease of stored grains is

A. rosette

B. wilt

C. soft rot

D. damping off

E. mould

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

A. pigs

B. cattle

C. sheep

D. rabbits

E. fowls

12. The head of the tapeworm is known as the

A. sucker

B. rostellum

C. scolex

D. hook

E. segment

13. 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

14. 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

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

A. borno

B. sokoto

C. plateau

D. obudu

E. oyo north

16. Which of the following activities is not a marketing function?

A. Buying of agricultural commodities

B. planting of crops

C. transporting of farm produce

D. storage of farm produce

17. Risks on commercial farms could result from

A. price stability

B. crop failure

C. insurance

D. diversification

18. An agricultural extension officer should be able to

A. create new jobs for farmers

B. raise funds for farmers

C. cultivate a large farm

D. guide and educate farmers

19. An agricultural extension officer should be able to

A. create new jobs for farmers

B. raise funds for farmers

C. cultivate a large farm

D. guide and educate farmers

20. An agricultural extension officer should be able to

A. create new jobs for farmers

B. raise funds for farmers

C. cultivate a large farm

D. guide and educate farmers

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How to pass NECO Agricultural Science Examination

1. Have a strong desire to succeed.

The NECO 2022 Agricultural Science exam is primarily for individuals who are determined to pass with a high score.

Any applicant who has not made up his or her mind to pass the upcoming NECO 2022 Agric Science with an outstanding grade is not ready to pass.

So, stay cheerful and study your books, rather than following your slacker buddies who believe in miracles on exam day.

2. Have self-assurance

Another component that influences a candidate’s performance is self-confidence. Promise yourself that you will do everything by yourself, and everything will be extremely simple for you.

Because of a lack of self-confidence, many pupils cancel the correct answers in order to replicate the incorrect ones. You are the miracle of the day if you study and pray diligently.

Manage your time in the examination hall wisely

It is risky to remain in one question for more than the expected time. For objectives, you should be able to answer all your questions 15 minutes before the exam ends. Use the remaining time to dot your ‘I’s and cross your ‘T’s. In other words, use it to go through your work and make the necessary corrections.

For the essay part of the exam, ensure you do not exceed he proper time for each question. No matter how simple or hard a question would be, don’t dwell much on it.

To be able to manage your time properly, I recommend you go in with a wrist watch. Always allocate time to each question and try to finish it within that period.

Utilize the agric NECO Syllabus 2022

It is extremely important to use the NECO 2022 curriculum as it will help you to cover important topics. Without the Syllabus you will concentrate on unnecessary subjects not presented in examinations.

No need going to cover a whole textbook just to pass a particular subject. That would be stressful on your own side. The syllabus are important because all your questions will come from there.

Syllabus gives you area of concentration and also the list of textbooks which you will use to cover those topics.

SEE: 12 Secrets of Passing Any Kind Of Examination With Good Grades

Disclaimer: The above questions and answers are agric repeated and past questions and answers. The 2022 Agric Answers will be posted here as soon as it is out.

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