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SS1 Chemistry Third Term: Chemical Industries

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Introduction The development of the chemical industry had important effects on chemistry. In 1749, the Chamber process for the commercial manufacture of hydrogentetraoxosulphate (vi) was developed. Important Raw Materials The important raw materials are air, sea-water and rock salt, sulphur, calcium trioxocarbonate (IV), metallic mineral ores, coal, natural gas and petroleum. Most of the naturally

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JSS1 Business Studies Third Term: Limited Liability Company

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Meaning of a Limited Liability Company Limited Liability Companies is usually formed by people who contribute to a common purse for the purpose of making running a business enterprise with the aim of making a profit. The contribution made by each person is called shares; a person who contributes his shares is then referred to

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SS2 Civic Education Third Term: Importance of Interpersonal Relationships

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Meaning of Inter-communal Relationship Inter-communal Relationship is a relationship which exists between two or more communities. One of the main objectives of any good government is to bring government close to the citizens and provide a forum where local people can defend and develop their interest thereby contributing to the peace and harmony development of

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SS1 Mathematics Third Term: Mean Deviation for Grouped Data

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Introduction Range and quartile deviations are positional measures of dispersion, wherein all the observations are not taken into account in the calculation. Now we consider a measure of dispersion called mean deviation based on all observations. Consider the observation 3, 5, 6, 7, 9 A.M. = `(3+5+6+7+9)/(5)` = 6 The sum of the deviations of the items

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SS1 Biology Third Term: Towards Better Health

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Introduction Pathogenic or harmful micro-organisms have the ability to wipe out the whole of humanity directly or indirectly. They therefore must be controlled through some measures in order to stay healthy. Control of Harmful Micro-Organisms The use of drugs like antibodies performs key role in checking the spread of microorganisms Dehydration tends to inactivate the

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SS3 Civic Education: Revision – Democracy

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Topic: Democracy Content Meaning and Characteristics of Democracy Types of Democracy Importance of Democracy Problems of Democracy Meaning of Democracy According to Abraham Lincoln, democracy is the government of the people, by the people and for the people. This is the system of government in which people exercise their political power through periodic election of

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SS3 English Language: Revision on finite and non-finite clauses

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Grammatical Structures: Revision on finite and non-finite clauses Skill Focus: Avoiding Common errors Vocabulary Development: Register of Science  Grammatical Structures: Revision on finite and non-finite clauses What is the structure of the following sentence? Deterred by the lack of future job prospects, many Nigerian secondary school students avoid science subjects. The sentence contains two clauses,

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JSS2 Mathematics Third Term: Approximation and Estimation

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Rounding off Numbers To ’round off’ or ‘approximate’ a number to a desired degree of accuracy, we- a. round the number up if the next digit is 5 or more b. round the number down if the next digit is less than 5. We represent approximately equal to as and approximately as ‘~’ Examples: 1. 73 is close to

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SS2 Geography Third Term: Problems of Population Growth

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Topic:Problems of Rapid population growth Content Problems of rapid population growth Advantages of High Population Densities Disadvantages of high population densities Advantages of low population densities Disadvantages of low population densities Problems of Rapid population growth High rate of infant mortality is certain in a growing population because of social pressure High mobility will also

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