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WAEC Agric Practical Answers 2024 – 14th May 2024

WAEC Agric Practical Answers 2024 - 14th May 2024

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WAEC Agricultural Science Practical Answers 2024: here are the verified WAEC 2024 Agricultural Science Practical Questions and answers for SS3 students for Tuesday 14th May 2024. WAEC 2024 Agricultural Science Practical Questions and Answers.

TUESDAY, 14TH MAY, 2024

  • Agricultural Science 3 (Practical) – 09:30 am – 11:00 am (1st Set)
  • Agricultural Science 3 (Practical) – 11:30 am – 1:00 pm (2nd Set)

WAEC 2024 Agricultural Science Practical Questions and Answers

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WAEC Agricultural Science Practical Answers 2024: Welcome to the waec2024.org answer page where you will get verified and 100% authentic and correct WAEC Agricultural Science Practical Answers 2024 for Tuesday 14th May 2024.

Examkey.net Agricultural Science Practical pin questions and answers for today, examkey, joberplanet, lasu-info, ceebook, noniwap, noniexpo, examspot, unn-edu, nairaland, utmeofficial, bestexamportal, sureanswer.com.ng

WAEC 2024 Agricultural Science Practical Questions & Answers

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Our Previous WAEC 2024 Questions and Answers

QUESTIONS HISTORY 1

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(1)

(i) Trade and Commerce: Establishing diplomatic ties allowed for enhanced trade and commerce between the states. This brought economic benefits to the states involved as they could exchange goods resources and services in a more organized and mutually beneficial manner.

(ii) Security and Defense: Diplomatic ties fostered a sense of unity and cooperation among the states which was essential for collective security and defense. By collaborating and forming alliances they could better protect themselves against common external threats such as raids from other states or external powers.

(iii) Cultural and Social Exchange: Diplomatic ties provided opportunities for cultural and social exchange. States could share knowledge traditions customs and technologies thereby enriching their own societies. This led to an increased understanding and respect for one another’s cultures fostering a sense of unity and shared identity.

(iv) Conflict Resolution: Diplomatic ties provided a platform for peaceful resolution of conflicts that might arise between states. By engaging in diplomatic negotiations disputes and tensions could be resolved through dialogue and compromise rather than resorting to violence and warfare. This promoted stability and prevented the escalation of conflicts.

(v) Communication and Information Exchange: Diplomatic ties facilitated the exchange of information and communication between states. This was important for keeping abreast of developments sharing news intelligence and coordinating actions which was particularly crucial in times of crisis or emergencies.

(vi) Political and Diplomatic Influence: Establishing diplomatic ties allowed states to gain political and diplomatic influence within the region. By forming alliances and maintaining cordial relations they could raise their stature and gain leverage in regional affairs. This enabled them to negotiate better terms in treaties and agreements and have a voice in regional decision-making.

(vii) Preemption of External Influence: By promoting diplomatic ties amongst themselves the various states aimed to preempt external interference or domination. This was particularly significant at a time when European powers were increasingly expanding their colonial ambitions in Africa. By presenting a united front the states could resist external pressures and maintain their sovereignty to a certain extent.

======================================================

QUESTIONS HISTORY 2

(2)

(i) Geographic barriers: Nigeria’s interior region is characterized by dense rainforests vast savannahs and river systems which posed significant challenges for European exploration and penetration. The difficult terrain hindered easy access to the interior leading Europeans to primarily focus their activities along the coastal areas.

(ii) Disease and health risks: The coastal regions were relatively more accessible to European merchants and explorers but they still faced significant health risks from tropical diseases such as malaria and yellow fever. Europeans had limited knowledge and immunity to these diseases making it dangerous for them to venture too far inland.

(iii) Local resistance: The indigenous populations in Nigeria particularly those in the interior often resisted European encroachment. Many Nigerian ethnic groups had well-established social and political structures that were protective of their territories. They viewed Europeans as potential threats to their sovereignty and resisted their presence.

(iv) Slave trade dynamics: During this period the primary focus of European activities in Nigeria was the transatlantic slave trade. The coast served as a major hub for capturing enslaving and transporting African slaves to the Americas. Therefore Europeans strategically concentrated their activities in the coastal areas where they could easily access and trade with local African slave traders.

(v) Lack of economic incentives: The interior regions of Nigeria were not initially attractive to European traders due to the absence of highly sought-after resources like gold and spices. The coastal areas on the other hand provided access to valuable commodities such as palm oil ivory and later on groundnuts which motivated European traders to stay along the coastline.

(vi) Technological limitations: Europeans faced technological limitations in terms of transportation and communication which further restricted their activities to the coast. Without efficient means of transportation and communication venturing into the interior would have been logistically challenging and economically unviable.

======================================================

QUESTIONS HISTORY 3

(3)

(i) Agriculture: Agriculture formed the backbone of the Nupe economy. The kingdom was situated in a fertile region along the Niger River and benefited from favorable agricultural conditions.

(ii) Trade: The Nupe Kingdom was strategically located along important trade routes, serving as a middleman between the Saharan and West African regions. The kingdom facilitated the trade of goods such as salt, kola nuts, cotton, ivory, slaves, and other commodities.

(iii) Tribute: The Nupe Kingdom had a centralized political structure with a hierarchical system of administration. Local chiefs and rulers within the kingdom owed allegiance to the Nupe king, and they paid tribute in the form of goods, livestock, or labor.

(iv) Taxes: Nupe rulers likely imposed taxes on their subjects, including levies on land, livestock, and economic activities.

(v) Craftsmanship and Artistry: The Nupe people were known for their skilled craftsmanship and artistic traditions. They produced a wide range of goods, including pottery, textiles, woodcarvings, metalwork, and leather goods.

(vi) Tribute from Conquered Territories: The Nupe Kingdom expanded through military conquests, incorporating neighboring territories and kingdoms. Conquered regions would have paid tribute to the Nupe rulers, providing additional revenue streams.

======================================================

QUESTIONS HISTORY 5

(5)

(i ) Demographic Disruption: The slave trade resulted in a significant loss of population in Nigeria. It is estimated that millions of people were captured and forcibly transported as slaves to the Americas. This large-scale forced migration created demographic instability and imbalances in various regions with some areas experiencing severe depopulation.

(ii) The slave trade during this period. Many coastal regions such as Lagos and Calabar became major trade hubs for slave auctions. European powers particularly the British established forts and trading posts in these regions manipulating local rulers to facilitate the capture and sale of slaves. This exploitation led to the extraction of Nigeria’s human capital and natural resources depriving the country of significant economic development.

(iii) Political Instability: The slave trade and its associated activities such as raiding and wars to capture slaves created political instability in Nigeria. Many kingdoms and communities engaged in conflicts with each other to gain control over territories and capture slaves. The rise of slave trading power dynasties further exacerbated these conflicts and weakened traditional political structures. This instability continued even after the abolition of the slave trade as power struggles persisted between different factions seeking to control economic resources.

(iv) Cultural Loss: The trans-Atlantic slave trade had a lasting impact on Nigerian culture. With the forced migration of millions of people many cultural practices traditions and languages were lost. The descendants of those who were captured and sold as slaves in the Americas often struggled to maintain their cultural identities and heritage resulting in a loss of cultural continuity.

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QUESTIONS HISTORY 8

(8)

(i)The central legislative council: It was renamed the House of Representatives. The president was the Governor and it had 6 ex- official members. 136 representative members were through the regional houses and 6 special members were nominated by the Governor. The North sent 68 members while the West and East had 34 members which made up the 136 representatives.

(ii)The Central Executive Council: This was known as the council of ministers. The Governor was the president and there were6 official members, 12 ministers of which 4 represented each region. They were in charge of government departments and appointed by the governor on the recommendation of the regional legislature.

(iii)The Regional Legislature: The Northern and Western regions each had a bi-cameral House of Assembly and Chiefs. The Eastern region had only the power to make laws on certain issues like local matters, native courts, health, etc.

(iv)Regional Executive Council: Each region had an executive council. The Lieutenant Governor was the president and it had 5 official members and 9 ministers. They advised the governor but he could accept or reject their advice.

(v)The colony of Lagos was part of the Western region.

(vi)The three provinces were renamed, Western, Eastern and Northern regions.

(vii)The three chief commissioners for each province were renamed Lieutenant governors.

QUESTION 1

(1a)

(i) Sign in: Sign in is the process of logging into a system or service using a username and password or other credentials to access personalized content or features. By signing in, users can access their accounts, settings, preferences, and other information that is specific to them.

(ii) Search engine: A search engine is a web-based tool or software program that allows users to search for information on the internet. Users can enter keywords or queries into the search engine, which then retrieves relevant results from its index of websites and web pages.

(1bi)

(i) Figure 1: Random File Access Method

(ii) Figure 2: Sequential File Access Method

(1bii)

(i) FIGURE 1:

ADVANTAGES:

(PICK ONE ONLY)

(i) Fast access to any record

(ii) Direct access to data

(iii) Efficient for reading and writing large amounts of data

(iv) Suitable for large databases

(v) Support for random access and sequential access operations

DISADVANTAGES:

(PICK ONE ONLY)

(i) Inefficient for large data sets

(ii) Prone to data corruption

(iii) Limited portability between systems

(iv) Difficulty in managing complex data structures

(v) Limited built-in search capabilities

(ii) FIGURE 2

ADVANTAGES:

(PICK ONE ONLY)

(i) Simple to implement

(ii) Cost-effective

(iii) Suitable for large amounts of data

(iv) Easy to maintain

(v) Can be read sequentially

DISADVANTAGES:

(PICK ONE ONLY)

(i) Slow access speed

(ii) Inefficient for frequent random access

(iii) Limited concurrent access

(iv) Difficulty in updating and inserting data

(v) Susceptible to data corruption

=====================================================

QUESTION 2

(2ai)

(PICK ANY ONE)

(i)Data cable is a type of cable used to transfer data between devices, such as computers, smartphones, printers, and other peripherals. 

(ii)Data cable is a physical medium used to establish a connection between electronic devices for the purpose of transmitting data signals.

(2aii)

(PICK ANY TWO)

(i)USB (Universal Serial Bus) cable

(ii)HDMI (High-Definition Multimedia Interface) cable

(iii)Ethernet cable

(iv)VGA (Video Graphics Array) cable

(v)DisplayPort cable

(vi)Thunderbolt cable

(vii)SATA (Serial ATA) cable

(2aiii)

Bus speed affects data transfer within a computer system. A faster bus speed means data moves quickly between components, enhancing overall system performance, while a slower bus speed leads to delays and reduced performance.

(2bi)

Register: Register refers to a small, high-speed storage area within the CPU (Central Processing Unit) of a computer. registers play a crucial role in storing and manipulating data.

(2bii)

Address: Address refers to a unique identifier assigned to a specific memory location within a computer’s memory hierarchy.

=====================================================

QUESTION 3

(3ai)

A file in computer terms refers to a collection of data or information that is stored under a specific name on a storage device.

(3aii)

A record is a collection of related fields that are usually treated as a single unit of information. In the context of databases, a record represents a single entry that contains multiple pieces of information about one entity.

(3aiii)

A field is a single piece of information; it is a basic element of data storage that has a specific meaning and context. Fields are used to construct records, where each field in a record typically holds one piece of information relevant to the record.

(3bi)

(i)The student’s ID number

(ii)Date of birth

(iii)Emergency contact information.

(3bii)

To edit a field in a student’s record, one would generally need to open the database application and navigate to the record in question. Next, they would locate the specific field that requires editing and enter the new information. After making the necessary changes, they would save the updated record to ensure that the edits are retained.

(3biii)

(i)Microsoft Access

(ii)MySQL.

=====================================================

QUESTION 4

(4ai)

A logic truth table shows all possible combinations of inputs and their corresponding outputs, illustrating the logical relationships between them.

(4aii)

(i) AND gate

(ii) OR gate

(4aiii)

| X | Y | Z = X AND Y | Z = X OR Y| 

|—–|—–|————-|———–|

| 0 | 0 | 0 | 0 | 

| 0 | 1 | 0 | 1 | 

| 1 | 0 | 0 | 1 |

| 1 | 1 | 1 | 1 | 

(4b)

A comparator is a logic device used to compare two binary numbers or signals. It typically has two input terminals for the numbers to be compared and outputs a logical indication of their relationship, such as equality, greater than, or less than. The output is determined based on the comparison of corresponding bits of the input numbers. In essence, it examines whether one input is greater than, less than, or equal to the other. Comparators are widely used in digital circuits, such as in arithmetic and logic units (ALUs), in microprocessors, and in data processing applications. They play a crucial role in tasks such as sorting, decision-making, and controlling the flow of data in electronic systems.

=====================================================

QUESTION 5

(5a)

(TABULAR FORM)

(PICK ANY TWO)

-COMPUTER-

(i) A computer is a physical device that can execute instructions and perform various tasks

(ii) computer consists of hardware components such as processors, memory, and storage devices

(iii) A computer can execute a wide range of programs and applications

(iv) A computer can directly execute machine-level instructions

-INTERPRETER-

(i) interpreter is a software program that translates and executes high-level programming language instructions.

(ii) interpreter is a software component that runs on a computer.

(iii) interpreter is specifically designed to execute programs written in a particular programming language.

(iv) An interpreter must translate the high-level programming language instructions into machine-level instructions before they can be executed.

(5bi)

(PICK ANY ONE)

(i) Easier to read and understand, making the code more maintainable and less error-prone.

(ii) Abstraction from low-level hardware details, allowing the programmer to focus on the problem-solving logic.

(iii) Portability, as high-level language code can be executed on different computer architectures with the help of compilers or interpreters.

(5bii) 

(PICK ANY ONE)

(i) Closer to the hardware, allowing for more control and optimization of system resources.

(ii) Faster execution time, as low-level instructions are directly executed by the computer’s processor.

(iii) Better understanding of the underlying computer architecture and how it operates.

(5c) 

(PICK ANY TWO)

(i) Efficiency: The program should be designed to use system resources (CPU, memory, storage) effectively and minimize computational overhead.

(ii) Reliability: The program should be able to handle unexpected inputs or errors gracefully, without crashing or producing incorrect results.

(iii) Maintainability: The program’s code should be organized, well-documented, and easy to understand and modify by other programmers.

(iv) Modularity: The program should be divided into smaller, reusable components or modules that can be easily tested and integrated.

QUESTION 1

(1ai)

According to Lewis, an acid can be defined as a substance that can accept a pair of non-bonding electrons i.e an electron pair acceptor.

(1aii)

AlCl₃

(1b)

Salting out is a process through which soap is precipitated as solid from the suspension by adding common salt to the suspension. It is a purification process.

(1c)

Reagent – Silver trioxonitrate(v)

Condition – The reaction takes place at high temperatures and pressure.

(1d)

This is the proportion at which isotopes of an element are to each other in its composition.

(1e)

(i) It has a stable configuration

(ii) This is because they have a covalent bond.

(1f)

They can be differentiated using barium chloride. When barium chloride is added to concentrated H₂SO₄ a white precipitate is formed with concentrated HNO₃

(1g)

[TABULATE]

-ELECTROCHEMICAL CELL-

(i) There are two electrolytes 

(ii) Salt bridge is present.

-ELECTROLYTIC CELL-

(i) There is only one electrolyte

(ii) There is no salt bridge present.

(1h)

The lower the ionisation energy, the higher the reactivity of metals. Since it decreases down the group, the reactivity increases down the group I.

(1i)

This can be defined as a formula that shows the actual number of atoms in a compound.

(1j)

(i) NH₃

(ii) This is because its interaction is perfectly inelastic.

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QUESTION 2

(2ai)

Ionization energy can be defined as the energy required to remove a loosely bound electron from the outermost shell of a gaseous covalently bonded atom.

(2aii)

This is because B has more shells than Be which makes the valence electrons to be far from the nucleus making it require less energy due to lesser nuclear attraction.

(2b)

I = 0.12A, t = 500seconds

m = 0.015g, F =96500C

M = 48.0, Charge = ?

Using;

m = MIt/CF

C = MIt/mF

C = (48×0.12×500)/(0.015×96500)

C = 2

(2ci)

Al₂O₃

(2cii) 

(i) Electricity supply

(ii) Nearness to source of material

(2di)

This can be defined as a property of metal which are weakly attracted to an applied magnetic field

(2dii)

(i) I → ₂₄Cr²⁺ → 2

₂₄Cr⁶⁺ → 0

(ii) ₂₄Cr²⁺

(iii) It has unpaired electrons.

(3ai) 

This can be defined as the number of atoms or molecules in one mole of a substance which is equal to 6.02 ×10²³

(3aii) 

Mass/m.m = no. of molecules/Avogadro’s number

(2.30/m.m) × (3.01×10²²/6.02×10²³)

m.m = (2.30×6.02×10²³)/3.01×10²²

m.m = 46g/mol

(3aiii) 

Since the molar mass = 46g/mol 

The formula is NO₂

:. 14+(16×2)

14+32 = 46g/mol

:. NO₂

(3bi)

(i) There is no reaction but rather forms a layer underneath the water 

(ii) It reacts violently with water forming white silicon dioxide and hydrogen chloride gas.

(3bii)

The reaction is different because CCl₄ is an organic substance while SiCl₄ is not.

(3ci)

Extraction of copper

(3cii) 

(i) CuSO₄

(ii) CuCl₂

(3ciii)

Cu²⁺ + 2e⁻ —> Cu

(3civ)

Using; m = ZIt

Z = m/It

Z = 3.2/(50x(3×60)+13)

Z = 3.2/(50×193)

Z = 3.2/9650

Z = 0.000332g/Asec

(3d)

Draw

Oxygen can be prepared by heating KClO₃ in the presence of manganese(iv)oxide which acts as a catalyst to produce KCl and oxygen gas. The reaction takes place at a lower temperature and much faster rate.

KClO₃ (MnO₂)heat—–> KCl + O₂

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