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Transport Layer: Layer 4 of the OSI model - ICT Ecological pyramid explained with its importance and limitations - Biology Importance of immunization - Basic Science Postural defects that affect the spine or backbone - PHE Types of Carbohydrates: Monosaccharides and Polysaccharides - Basic Science Carbohydrates: Disaccharides and Oligosaccharides - Basic Science Importance of forest: Forest reserves in Nigeria - Agricultural Science Wildlife reserves in Nigeria and its importance - Agricultural Science Belt Drives: Types of belt drive - Basic Technology Cooperation in civic education - Civic Education Solutions to air pollution - PHE Business Structure: What is a business structure? - Business Studies Advantages and Disadvantages of franchise - Business Studies Why does suffering and pain exist? - CRS Angles: Type of angles based on degree measurement - Mathematics Angle Pairs: Types of angle pairs - Mathematics Arms of Government: Functions of the Executive, Legislature and Judiciary - Government Le Chatelier's Principle: Changes in concentration and pressure in dynamic equilibrium - Chemistry Chemical Equilibrium: Dynamic Equilibrium in Chemistry - Chemistry Static and Dynamic Equilibrium explained with their Differences - Chemistry Child marriage and its consequences - Social Studies Consequences of Female Genital Mutilation - Social Studies Forgiveness: Jesus' teaching on Forgiveness and its importance - CRS What is Forgiveness? Jesus' teaching on Forgiveness - CRS Advantages of Inflation - Economics Disadvantages of Inflation - Economics Concept of Inflation in Economics - Economics Hindbrain: Medulla Oblongata and its features - Biology Principle of Marketing: People as a Marketing Mix and their Importance - Commerce Len Academy Examination Questions for Basic Science, JSS2, 2nd Term - Basic Science Food web explained with examples - Biology Scheme of work for Economics, SS1, First Term - Economics Scheme of work for Economics, SS1, Second Term - Economics Scheme of Work for Economics, SS1, Third Term - Economics Branches of Geography: Physical and Environmental Geography - Geography Ceramics: Types of Ceramics - Basic Technology Advantages and Disadvantages of Chain drives - Basic Technology Len Academy Examination Questions for Basic Science, JSS3, 3rd Term - Basic Science Len Academy Examination Questions for Basic Science, JSS3, 2nd Term - Basic Science What is a franchise? Types of franchise - Business Studies What is Honesty? Who is a Dishonest Person? Consequences of Dishonesty - Civic Education What is Corporation? Types, Advantages and Disadvantages of Corporations - Business Studies Scheme of Work for Government, SS1, First Term - Government Scheme of Work for Government, SS1, Second Term - Government Scheme of Work for Government, SS1, Third Term - Government What is Limited Liability Company? Its Advantages and Disadvantages - Business Studies Partnership in Business: Types, Advantages and Disadvantages - Business Studies Principle of Marketing: Positioning as a Marketing Mix - Commerce Principle of Marketing: Packaging as a Marketing Mix - Commerce Chemistry Scheme of Work, SS1, First Term - Chemistry Chemistry Scheme of Work, SS1, Second Term - Chemistry Chemistry Scheme of Work, SS1, Third Term - Chemistry Literature in English Scheme of Work, SS1, 1st Term - Literature in English Literature in English Scheme of Work, SS1, 2nd Term - Literature in English Literature in English Scheme of Work, SS1, 3rd Term - Literature in English Characteristics of Double Entry System - Accounts Examples on the Principle of Double Entry System - Accounts Advantages and Limitations of the Double System in Accounting - Accounts Elements of Promotion in Marketing Mix - Commerce Principle of Marketing: Promotion as a Marketing Mix - Commerce Biology Scheme of Work, SS1, First Term - Biology Biology Scheme of Work, SS1, 2nd Term - Biology Biology Scheme of Work, SS1, 3rd Term - Biology Prevention and Control of Crop Pests - Agricultural Science Economic Importance of Crop Pests - Agricultural Science Phrase: Types of Phrase - English Len Academy Questions for Basic Technology JSS3, 2nd Term, 2020 - Basic Technology Len Academy Question for Basic Technology, JSS3, 2nd Term, 2020, Part 2 - Basic Technology Classification of Insect Pests and their Economic Importance - Agricultural Science Jesus' teaching on Giving - CRS Concept, Advantages and Disadvantages of Multi-Party System - Government Belt and Pulley Drives: Types of Belt in Belt Drives - Basic Technology Seminal Vesicles and Bulbourethral Glands as Male Accessory Sex Organs - Biology Principle of Marketing: Place as a Marketing Mix - Commerce Agricultural Machines and their Uses - Agricultural Science Clause and Types of Clause explained - English Derived Units: Similarities and Differences with Fundamental Units - Physics Concept, Advantages and Disadvantages of Two-Party System - Government Male Reproductive System: Scrotum and its contents - Biology Principle of Marketing: Price as a Marketing Mix - Commerce Principles of Marketing: The 7 Ps of Marketing Mix - Commerce Conversion of Number Bases explained with examples - Mathematics Soil Erosion: Causes of Soil Erosion - Agricultural Science Ways to prevent Soil Erosion - Agricultural Science Essay: How to write the major types of essay - English Healthy Self-esteem: Characteristics and Benefits of Healthy Self-esteem - Social Studies Causes of Environmental Problems - Social Studies Effects of Environmental Problems and Solutions to Environmental Problems - Social Studies Compounds in Chemistry: Characteristics of Compounds - Chemistry Types of Mixture: Homogenous and Heterogeneous Mixtures - Chemistry Mixtures: Characteristics of Mixtures - Chemistry Functions of the Wholesaler - Economics Advantages and Disadvantages of the Wholesaler - Economics Wholesale Market: Who is a Wholesaler? - Economics Characteristics of the Wholesaler - Economics Brain: Introduction to the Human Brain - Biology Forebrain: Lobes of the Cerebrum and their Functions - Biology Cerebellum: Parts and Functions of the Cerebellum - Biology Midbrain: Division and Functions of the Midbrain - Biology Negative Feedback Mechanism in Homeostasis - Biology Factors necessary for Division of Labour - Commerce Disadvantages of Division of Labour - Commerce Advantages of Division of Labour - Commerce Arterial Disorders: Characteristics and Causes of Arterial Disorders - Biology Consequences of Drug Trafficking and Solutions to Drug Trafficking - Social Studies Drug Trafficking: Reasons for Drug Trafficking - Social Studies Gravity: Interesting facts on Gravity - Physics Asexual Propagation in Plants, Types and Examples - Agricultural Science Differences between Gymnosperms and Angiosperms - Agricultural Science Relative Density of Substances and Specific Gravity - Physics Retail Market: Who is a Retailer and Examples of Retailers - Economics Market: Types of Market - Economics Market - What is a Market in Economics? - Economics Self-esteem: How to overcome Low Self-esteem - Social Studies What is Low Self-esteem? Characteristics of Low Self-esteem - Social Studies Low Self-esteem: Causes of Low Self-esteem - Social Studies Physical Properties of Matter explained with Examples - Chemistry Chemical Properties of Matter explained with Examples - Chemistry Differences between Physical and Chemical Change - Chemistry Outbound Marketing explained - Commerce


The term _____ describes the billions of physical devices that will be connected to the internet.

  • A. Internet of Everything

  • B. Internet of Physical Devices

  • C. Internet of Things

  • D. Internet of Objects

  • E. Internetworking

  • F. Internetworking of Objects

ICT

ANSWER: Internet of Things

The Internet of Things (IoT) describes the billions (or even trillions) of physical devices that will be connected to the internet.

The Internet of Things is considered as the 4th industrial revolution since it will give rise to technologies like smart homes, smart roads, smart schools, smart cars and so on.

Please read on the Internet of Things here

You can check out the Len Academy smart school system here

An ancient mode of transportation that requires the use of donkeys and camels is termed _____.

  • A. Human trans-animal

  • B. Human trans-ancient

  • C. Human-animal transportation

  • D. Human mechanical movement

  • E. Human porterage

  • F. Human trans-old

Social Studies

ANSWER: Human porterage

Human porterage is an ancient mode of transportation that requires the use of animals such as donkeys, mules, camels and horses as means of movement.

Rail transportation is a type of land transportation.

  • A. True

  • B. False

Social Studies

ANSWER: True

Land mode of transportation can be classified into 2 types. These are:

  1. Road Transportation: This is a type of land transportation utilized by cars, lorries, bicycles, motocycles and trucks. Road transportation is more prone to accidents when compared to other modes of transportation.

  2. Rail Transportation: Trains and speed trains utilize this mode of transportation. They can convey large number of people or goods both within and outside a country. Accidents are rare in rail transport.

Please read more on transportation here

The following factors will promote cooperation except _____.

  • A. Achievement of a personal goal

  • B. Achievement of a common goal

  • C. Understanding the common goal

  • D. Understanding one another

  • E. Equality

  • F. None of the above options

Civic Education

ANSWER: None of the above options

Options A through E are all factors that will promote cooperation.

Cooperation is defined as the process of coming together, working together and helping one another to achieve a common goal. It is fostered or promoted by various factors.

Please read more on the factors that promote cooperation here

A figure of speech that shows a balanced expression written in a reverse order is the _____.

  • A. Oxymoron

  • B. Hyperbole

  • C. Onomatopoeia

  • D. Synecdoche

  • E. Anaphora

  • F. Chiasmus

English

ANSWER: Chiasmus

Chiasmus is one of the figures of speech. They are balanced expressions written in a reverse order. Below are some examples:

  • We die to live. (We actually live before we can die).

  • The fat man lives to eat. (The fat man is supposed to eat in order to live).

The little giant is here

The figure of speech used in the above instance is _____.

  • A. Oxymoron

  • B. Hyperbole

  • C. Onomatopoeia

  • D. Synecdoche

  • E. Anaphora

  • F. Chiasmus

English

ANSWER: Oxymoron

Oxymoron is a figure of speech that passes information by utilizing two contradictory words.

From the above question, the words 'little giant' is contradictory because one can't be little and be a giant at the same time. (A giant is always big).

Other examples of oxymoron include:

  • That's old news

  • He is a powerless president

  • The timid lion is here

Please read more on figures of speech here

_____ is a figure of speech that uses two main words 'as and 'like' as a source of comparison between two things that normally do not have anything in common.

  • A. Metaphor

  • B. Irony

  • C. Simile

  • D. Oxymoron

  • E. Personification

  • F. Hyperbole

English

ANSWER: Simile

Simile is the only figure of speech that uses the two main words as and like as a source of comparison. Below are some examples of simile:

  • The boy is as black as a charcoal

  • She is as wise as an owl

  • Her face is as bright as the sun

Please read more on figure of speech here

Which of the following statement is incorrect concerning seeds?

  • A. The ovary develops into the seed after fertilization

  • B. The embryo in the seed develops into a young plant

  • C. The seed's endosperm serve as a source of food reserve for the developing embryo

  • D. A seed has its own genotype

  • E. Seeds are products of sexual reproduction

  • F. Apomictic seeds aren't produced sexually and the hawkseed is an example

Agricultural Science

ANSWER: The ovary develops into the seed after fertilization

After fertilization had occured in plants, the ovule becomes the seed while the ovary, its fruit.

The _____ is the reproductive organ in plant's sexual reproduction.

  • A. Pollen grain

  • B. Ova

  • C. Sperm

  • D. Flower

  • E. Fruit

  • F. Seed

Agricultural Science

ANSWER: Flower

The flower is the reproductive organ in plant's sexual reproduction.

Understand that the floral parts of a flower are crucial for a successful sexual propagation (reproduction). They are 4 in numbers. These are:

  1. Sepals
  2. Petals
  3. Stamen
  4. Carpel

In flowering plants, fertilization occurs when the _____ comes into contact with the ova (as genetic materials are eventually exchanged).

  • A. Sperm

  • B. Endosperm

  • C. Exosperm

  • D. Stigma

  • E. Ovule

  • F. Pollen grain

Agricultural Science

ANSWER: Pollen grain

For fertilization to occur in flowering plants, the pollen grain fuses with the ova. This is the concept of sexual reproduction in plants and seeds are eventually formed via this process

Please read more on sexual reproduction in plants here

The fusion of sperm and ova in animals leads to the formation of _____.

  • A. Foetus

  • B. Embryo

  • C. Ovary

  • D. Neonate

  • E. Zygote

  • F. Egg

Agricultural Science

ANSWER: Zygote

When sperm and ova (egg) fuses together, genetic materials are exchanged and a zygote is formed in the process. This process is termed fertilization.

You can read on the male accessory sex organs here

Which of the following is not a benefit of honesty?

  • A. Respect and admiration is earned from other people

  • B. It makes one eligible for a greater responsibility

  • C. Honestly on oneself can eliminate negative peer pressure

  • D. It fosters a form of emotional, social and spiritual connection

  • E. Honestly leads to social segregation

  • F. Practicing honesty can favor goodwill

Civic Education

ANSWER: Honestly leads to social segregation

Honesty does not lead to social segregation, rather it earns one a form of connection and trust from other people.

Please read on honesty and its benefits here

The attribute of honesty whereby a person is truthful, open and upright in whatever he or she does is termed _____.

  • A. Transparency

  • B. Contentment

  • C. Loyalty

  • D. Goodness

  • E. Reliability

  • F. Sincerity

Civic Education

ANSWER: Transparency

A person is said to be transparent when he or she is truthful, open and upright.

Please read more on the attributes of honesty here

Which of the following is not an effect of pollution?

  • A. Contamination of food by disease vectors

  • B. Eutrophication

  • C. Formation of acid rain

  • D. Afforestation

  • E. Global warming

  • F. Demise of aquatic flora and fauna

PHE

ANSWER: Afforestation

Afforestation refers to the planting of trees (or tree crops) on an area of land with few or no trees. This is not an effect of pollution.

Please read on the effects of atmospheric pollution here

The process of contaminating the atmosphere by introducing harmful and toxic substances into it is termed _____.

  • A. Pollution

  • B. Wind Pollution

  • C. Air pollution

  • D. Lithospheric pollution

  • E. Hydrospheric pollution

  • F. Breeze pollution

PHE

ANSWER: Air pollution

Air pollution is defined as the process of contaminating the atmosphere by introducing harmful and toxic substances into it.

The substances that bring about air pollution (or pollution in general) are called pollutants. Examples of pollutants are carbon(II)oxide (CO) and sulphur(IV)oxide (SO2

Please read more on atmospheric pollution and its effects here

A globally interconnected network system that utilizes TCP and IP to transmit data via various media is the _____.

  • A. World Wide Web (www)

  • B. Http

  • C. Https

  • D. Https://www

  • E. LAN

  • F. Internet

ICT

ANSWER: Internet

The internet is the mother of all network. It is the largest network in the universe and it utilizes TCP and IP to transmit data through various media like fibre optics, copper cables and wireless technology.

Understand that the internet and world wide web aren't the same thing.

Please read more on the internet and world wide web here

Tell whoever may ask that I am not interested

Whoever as used in the above sentence is a _____.

  • A. Simple relative pronoun

  • B. Compound relative pronoun

  • C. Complex relative pronoun

  • D. Complicated relative pronoun

  • E. Universal relative pronoun

  • F. Base relative pronoun

English

ANSWER: Compound relative pronoun

Pronouns like 'whoever, whichever, whosoever, whatever, whomever' are termed compound relative pronouns because they generally apply to more than one person or thing.

Please read more on relative pronouns here

Which of the following statement is incorrect concerning relative pronouns?

  • A. They refer to a noun that had been previously mentioned

  • B. They introduce relative clauses

  • C. They can function as an object in a sentence

  • D. They can function as a partial noun in a sentence

  • E. They can function as a possessive pronoun in a sentence

  • F. They can function as a subject in a sentence

English

ANSWER: They can function as a partial noun in a sentence

Relative pronouns aren't partial nouns. In short, there's nothing like partial nouns in English language.

Relative pronouns may be defined as nouns that had been previously mentioned. They may also be defined as those words that introduces relative clauses.

Please read more on relative pronouns with their examples here

The children laughed

The word laughed as used in the above sentence is a transitive verb.

  • A. True

  • B. False

English

ANSWER: False

'Laughed' as used in the above sentence is an intransitive verb because it takes no object:

An intransitive verb is a verb that has no object. An instance is shown below

The handsome boy danced beautifully

Notice that the verb danced in the above instance has no object. However, beautifully as used in the sentence is an adjective that qualifies the verb danced.

Please read more on transitive and intransitive verbs here

Which of the following is a piercing and sucking insect?

  • A. Mealy bug

  • B. Army worm

  • C. Beetle

  • D. Stem borer

  • E. Locust

  • F. Grasshopper

Agricultural Science

ANSWER: Mealy bug

Insects can be classified into the followings based on their mode of feeding:

  • Biting and chewing insects
  • Piercing and sucking insects
  • Boring insects

Examples of piercing and sucking insects include mealy bugs, white flies, aphids, cotton stainer, etc.

Please read more on pest of agricultural importance here here

Any organism capable of attacking agricultural crops and produce, rendering them unsuitable for harvest and unfit for the market is termed _____.

  • A. Worm

  • B. Virus

  • C. Vector

  • D. Pest

  • E. Parasite

  • F. Pathogen

Agricultural Science

ANSWER: Pest

A pest in agriculture is defined as any organism capable of attacking agricultural crops and produce, rendering them unsuitable for harvest and unfit for the market.

Generally, pests can be insects, rodents, birds, monkeys, nematodes and so on.

Please read more on pest of agricultural importance here here

Concerning demand curve, which of the following statement is incorrect?

  • A. It is a graphical represention of a table showing the price of commodities and quantity demanded

  • B. It can be an individual demand curve

  • C. The x-axis shows the price of commodities

  • D. The price and quantity demanded are expressed on different axis of the graph

  • E. It can be a market demand curve

  • F. All the options are correct

Economics

ANSWER: The x-axis shows the price of commodities

Demand curve is graphical represention of a table showing the price of commodities and quantity demanded.

The x-axis of the graph shows the demand for a commodity while the y-axis shows the price of the commodity.

Please read more on demand curve here

A table that shows the price of a commodity and the quantity demanded is termed _____.

  • A. Price table

  • B. Demand table

  • C. Demanded-price table

  • D. Demand preference table

  • E. Demand graph

  • F. Demand schedule

Economics

ANSWER: Demand schedule

Demand schedule is a table that shows the relationship between prices and the quantities of commodity demanded. We have two types. These are:

  1. Individual demand schedule

  2. Market demand schedule

Please read more on demand schedule here

Which of the following is not a branch of physical geography?

  • A. Economic Geography

  • B. Religious Geography

  • C. Social Geography

  • D. Resource Geography

  • E. Settlement Geography

  • F. Industrial Geography

Geography

ANSWER: Resource Geography

Resource geography is not a branch (or type) of human geography.

Human geography focuses on the study of human beings, their origin, race and they are affected by the earth.

Please read more on human geography here

Water resource geography is a branch under physiography.

  • A. True

  • B. False

Geography

ANSWER: True

Water resource geography is branch under physiography (or physical geography). It deals with the various water resource, their management and distribution across the earth.

Please read more on branches of geography here

Water resource geography is a branch under physiography.

  • A. True

  • B. False

Geography

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Quotes for Students

The first problem for all of us, men and women, is not to learn, but to unlearn - Gloria Steinem

The act of unlearning is an excellent form of learning. Infact, you will need the skills of unlearning if you intend to become an expert in your desired field.

Do yourself a favor by unlearning, learning and re-learning on a daily basis

If you don't design your own life plan, chances are you'll fall into someone else's plan. And guess what they have planned for you? Not much - Jim Rohn

There's something special about you. It doesn't matter whether you work for a company or someone; what matters is the amount of investment you've made on yourself.

Investing in yourself is the best life plan you can design for your future

Smile - Len Academy

Peace begins with a smile - Mother Teresa

Never underestimate the power of your smile. It can lift up the depressed, improve the mood of the downtrodden and even discourage a suicidal attack. Also remember that your smile makes you more beautiful

Smile always for your own good and the good of others

The only person who is educated is the one who has learned how to learn …and change - Carl Rogers

To perfect your learning process, you must learn, unlearn and re-learn. Infact, we all need to learn how to unlearn those vices we know about ourselves.

Do you know that seeing the devastating consequences of vices (perhaps in movies or real-life) can initiate the unlearning processes in one who does such?


Key Points for Students

God created human beings for the following reasons:

  1. To know Him

  2. To love Him

  3. To serve Him

  4. To be happy with Him forever

Our first parent, Adam and Eve enjoyed a life of complete happiness before they committed sin. They never knew what pain nor sorrow was until they disobeyed God. In short, both were perfect beings until they committed the sin of disobedience against God.

Disobedience may simple be defined as the failure to obey rules, command or someone in authority.

Adam and Eve were the first human beings to disobey God.

Please read more on the biblical account of first human disobedience here

CRS

Adam and Eve were able to commit sin (disobey God's command) because God had given them that special gift of free will.

The events written in Genesis 3:1-13 presents the story of the first human disobedience.

Now the snake was the most cunning animal that the Lord God had made. The snake asked the woman, 'Did God really tell you not to eat fruit from any tree in the garden?'

Genesis 3:1

Moral Lesson: The devil can come in any form and can tempt any man, woman, boy or girl, as far as he or she is of the age of reasoning.

Sometimes, satan creeps into one's life by asking simple questions. Notice that the snake (satan) did exactly this when it approached Eve to tempt her. To this end, we need to be at alert prayerfully because the evil one can tempt any human in any situation, place and at any point in time

CRS