Author: Bbosa Science
Physical geography Chapter 4 Rocks video
https://youtu.be/aJE5LTO0hHQ Mineral Rocks The process responsible for the formation of igneous rocks in East Africa Plutonic rocks/ Abyssal rocks: Hypabyssal/intermediate rocks: Volcanic rocks/extrusive rocks: Characteristics ... Read More
Physical geography Chapter 3 Volcanicity in East Africa video
https://youtu.be/FKHWm6bzBew Volcanism, volcanism or Vulcanicity Extrusive volcanic features; Ash and cinder cones. Composite cones/strato volcanoes, Shield volcanoes, Lava plateaus, Volcanic plug, Volcanic neck, Cumulo dome, ... Read More
UACE Geography Development of transport in the world part 1 of 2 and 2 of 2 videos
https://youtu.be/yeTrDOVhNbk UACE 250/2 geography paper 2 topic:advantages of road and railways transport, ,contributions of road and railway transport, problems facing road and railtransport in Africa ... Read More
Physical geography Chapter 2 Faulting in East Africa lesson 1 of 2 and 2 of 2
https://youtu.be/3Ii4UfYckRs Faulting The Rift Valley • The Tension force theory by Gregory • The compression force by Wayland • Vertical displacement theory by Dixey Importance ... Read More
UACE Geography The earth, continental drift and earthquakes video 1 of 2
https://youtu.be/CdI3zvc-LmY Properties of the earth. structure of the earth Spinning and Rotation of the earth Theories of continental drift F.B Tailor’s theory of continental drift ... Read More
Gondwanaland meaning
It is large area of land that is believed to have existed long ago and to have consisted of the lands of the Southern Hemisphere ... Read More
Demersal fish meaning
Demersal fish are those which live on, or near to the bottom of lakes or seas Read More
UACE Geography Agricultural practices in the world lesson 8 of 8 video
https://youtu.be/ArGRbngnWWo Fishing industry in theNorway, Ghana, Peru, Sweden, Angola, China, Namibia, Japan, Chile. The factors that favor fishing industry. The contributions of fishing industry. Factors ... Read More
Canyon-geography
A canyon is a deep, narrow valley with steep sides. Read More
UACE Geography Agricultural practices in the world lesson 7 of 8 video
https://youtu.be/ANruuhI6wuI Livestock farming Cooperative farming in Denmark Characteristics of cooperative farming Positive contributions/merits/Advantages of cooperative farming Roles of cooperatives in the development of dairy farming ... Read More
UACE Geography Agricultural practices in the world lesson 6 of 7 video
https://youtu.be/mKnGGwiS9RQ Agricultural production in Monsoon Asia Favorable Factors intensive agricultural production in Monsoon Asia Problems faced by agricultural production in Monsoon Asia Steps being taken ... Read More
UACE Geography Agricultural practices in the world lesson 5 of 7 video
https://youtu.be/9v2Ex9I-H84 Agricultural communes in china Characteristics of communes Factors that lead to development of agricultural communes in China Contributions of commune farming in China Collective ... Read More
UACE Geography Agricultural practices in the world lesson 4 of 7 video
https://youtu.be/9rFJMaz3YhU Characteristics of intensive farming Market gardening /truck farming e.g. in California, Netherland, Belgium, Denmark, etc Horticulture e.g. Netherland, Kenya Highlands, Denmark, Factory farming e.g. ... Read More
UACE Geography Agricultural practices in the world lesson 3 of 7 video
https://youtu.be/Fw8OhJCoe-U Characteristic of plantation farming Plantation farming in Kwazulu-Natal Plantation farming in Liberia Extensive wheat farming in Canada and North America Factors that favors plantation/extensive ... Read More
UACE Geography Agricultural practices in the world lesson 2 of 7 Video
https://youtu.be/xB2sN6nOHC8 Small holding farming Characteristics of small holding farms Advantages of small scale farming Disadvantages of small scale farming Growing of palm oil trees in ... Read More
UACE Geography Agricultural practices in the world lesson 1 of 7 video
https://youtu.be/gX0oSMZQLEw Characteristics of shifting cultivation Advantages of shifting cultivation Disadvantages of shifting cultivation Factors for persistence of shifting cultivation Factors for decline of shifting cultivation ... Read More
UACE Geography- Manufacturing industry in the world video
https://youtu.be/h1OZnqeCrnA Major industrial Centres in selected countries in the world, Britan, USA, China, Germany, Republic of South Africa Factors that favor development of industries ... Read More
UACE Geography Forestry in the World videos
https://youtu.be/9G3Qz5Tjc4U Characteristics of tropical rainforest Factors that favor the growth of tropical rainforest Factors favoring exploitation of tropical rain forests Factors that limit exploitation of ... Read More
Geography Urbanization and development of ports in the world video
https://youtu.be/8mI3q0pnmgk Meanings of urbanization, city, port, a site of a port, Conurbation Causes of urbanization Contributions (positive and negative) effects of urbanization General factors that ... Read More
UACE geography population videos
https://youtu.be/C12fjuAbdCQ Read More
What are the six functions of potassium in plants?
Increases root growth and improves drought resistance. Maintains turgor; reduces water loss and wilting. Aids in photosynthesis and food formation. Reduces respiration, preventing energy ... Read More
Geography Development of transport in the world part 2 of 2 video
https://youtu.be/Y6-W5AdEbAQ Inland water transport advantages of inland water transport, disadvantages of inland water transport inland water transport in china, USA, western europe steps improve inland ... Read More
Geography Development of transport in the world part 1 of 2 video
https://youtu.be/yeTrDOVhNbk UACE 250/3 geography paper 2 topic:advantages of road and railways transport, ,contributions of road and railway transport, problems facing road and railtransport in Africa Read More
Geography: Mining in the world video
https://youtu.be/7WB9dWxBPIE Definitions of mining types of minerals Mining in Nigeria, Democratic Republic of congo, DRC, Liberia, Germany, USA, Zambia, South Africa, Ghana, Libya The factors ... Read More
Explain why measles vaccine administered at the age of 9 month
It was estimated that weaning on average occurs at this age, and the baby no longer gets antibodies against measles from the mothers. Read More
Integration (A-level)
Please double click and dowload the pdf below Integration (A-level) Integration by change of variable where a derivative exist/integration by recognition or inspection Integration by ... Read More
Curve sketching (A-level)
Please download the PDF file from the link below Curve sketching (A-level) Read More
Approximations; The Maclaurin’s Theorem
Double click to download the PDF below A-level math paper 1 Approximation Maclaurin's theorem Read More
A-level math paper 1 Application of Differentiation (A-level)
Please download the pdf below A-level math paper 1 Application of Differentiation (A-level) displacement, velocity, acceleration rates of changes small changes tangents and normal equation ... Read More
Why Digital Teachers?
Digital teaching allows students to engage in self-directed learning in areas of personal interest and expertise. Youths are motivated by videos, pictures, and thus video ... Read More
Differentiation (A-level)
Please download the PDF below A-level math paper 1 Differentiation (A-level) Subtopics include Direct differentiation of explicit functions Differentiation of functions from first principles Differentiation ... Read More
Geography (UACE 250/2) paper 2 Revision questions for famine, desertification in the world
To what extent have physical factors contributed to the famine prob1em in Sub-Sahara Africa? (Candidates should define famine; identify sub-Sahara region and the most hit ... Read More
Geography (UACE 250/2) paper 2 Urbanization and Port development in the world
Definitions Urbanization is a process where there is an increasing percentage of the country's population living in towns. It is also a process of town ... Read More
Geography (UACE 250/2) paper 2 Revision questions for Urbanization and port development in the world
(a) Distinguish between site and hinterland of a port (05 marks) A site of a port refers to the actual ground where the port is ... Read More
Geography (UACE 250/2) paper 2 Tourism in the world
Tourism is a social, cultural and economic phenomenon which entails the movement of people to countries or places outside their usual environment for personal or business/professional ... Read More
Geography (UACE 250/2) paper 2 Revision questions for tourism in the world
Account for the development of tourism in either California or Republic of South Africa. (Candidates should select one country either California or Republic of South ... Read More
Geography (UACE 250/2) paper 2 Development of transport in the world
Transport is the physical movement of people and commodities from one place to another. Types of Transport Road transport Advantages of road transport Cheap in ... Read More
Geography (UACE 250/2) paper 2 Revision questions for development of transport in the world
Account for the development of road transport in either South Africa or Zambia. (25 marks) (Candidates have to select a country and describe the current ... Read More
Geography (UACE 250/2) paper 2 Manufacturing industry in the world
Industrialization is a process in which countries become increasingly involved in the production of manufactured goods. Major industrial Centres in selected countries in the world ... Read More
Geography (UACE 250/2) paper 2 Revision questions for manufacturing industry in the world
To what extent has availability of power and energy influenced the distribution of industries in either Germany or the USA. (Candidates should select one of ... Read More
Geography (UACE 250/2) paper 2 Population distribution, growth, characteristics and problems in selected region in the world
Terminologies Population is the number of people living in a certain area (region) at a given time. The total number of people is established by ... Read More
Geography (UACE 250/2) paper 2 Revision question of Population distribution, growth, characteristics and problems in selected region in the world
Describe the influence of climate on population distribution in Africa. (25 marks) (Candidates are expected to describe the distribution of the population in Africa i.e. ... Read More
Geography (UACE 250/2) paper 2 Mining in the world
https://youtu.be/7WB9dWxBPIE Mining is the process whereby mineral ores in commercial quantities are obtained from earth crust and purified to a form in which they ... Read More
Geography (UACE 250/2) paper 2 revision questions for Mining in the world
Describe the factors limiting the exploitation of mineral resources in either Nigeria or DRC.(25marks) (Candidates should select one country and describe the status of the ... Read More
Geography (UACE 250/2) paper 2: Forestry in the world
A forest is an area of land dominated by trees. Broadly forests are classified into tropical rain forests and temperate coniferous forest Tropical rain forests The ... Read More
Geography (UACE 250/2) paper 2 revision questions for Forestry in the world
1. Account for the development of the forestry industry in either Brazil or Canada (25marks) Ca11didateis expected to define a forest or forestry Justify the ... Read More
Geography (UACE 250/2) paper 2 Agricultural (Farming, livestock and fishing) practices in the world
Agriculture is the planting of crops and rearing of animals. Agriculture provides food, and raw materials for clothing, shelter, medicine etc. Agriculture types include Simple ... Read More
Geography (UACE 250/2) paper 2 revision questions for Farming, livestock and fishing practices in the world
Farming Examine the merits and demerits of plantation farming in either Liberia or Kwazulu-Natal of South Africa. (25marks) Candidates are expected to define the term ... Read More
Agricultural communes
Agricultural communes is type of farming where government organizes farmers in teams and brigades to carry out production on land a government owned land where ... Read More
Geography (UACE 250/2) paper 2 section A revision questions
Study the table below showing the area under forest in selected countries in Africa (2010) and answer the questions that follow Country Total forested area ... Read More
Physical geography Chapter 14: Soils in East Africa
Soil refers to the thin surface (outermost) layer of the earth's crust that supports life. It is composed of organic and inorganic material, air moisture, ... Read More
Loamy soil
Loamy soil describes a soil texture, not acidity or alkalinity. Read More
Physical geography Chapter 14: Vegetation in East Africa
Vegetation is a continuous plant cover. Natural vegetation types of East Africa include Tropical evergreen/Equatorial rain forest is found around the Lake Victoria shores, and ... Read More
Physical geography Chapter 13: Climatology (Climate) in East Africa
Climate Climate is the average weather conditions of the atmosphere of a given place studied and recorded over a long period of time over 40 ... Read More
Physical geography Chapter 12: Climatology (weather) in East Africa
Climatology is the study of the atmosphere and weather patterns over time. This field of science focuses on recording and analyzing weather patterns throughout the world ... Read More
Absolute humidity
Absolute humidity is the mass of water in (grams/m3) per unit volume of dry air regardless of its temperature. The higher the amount of water ... Read More
Relative humidity
Relative humidity is a ratio, expressed in percent, of the amount of atmospheric moisture present relative to the amount that would be present if the ... Read More