Comprehensive Geography Study Guide - Year 10 Senior Secondary

Overview and Scheme of Work

• School: King's Care Universal School ("…a school with a difference")

• Subject: Geography E-Notes

• Level: Year $10$

• Term: Summer Term

• Author: Mr. Adeniyi Femi

• Primary Reference Text: Essential Geography for Senior Secondary Schools by O.A. Iwena

Summer Scheme of Work Schedule

• Week $1$: Basic concepts of GIS (Definition of terms, Components of GIS)

• Week $2$: Earth's external processes (Action of running water)

• Week $3$: Action of wind (Features of wind erosion)

• Week $4$: Action of glacier

• Week $5$: Action of waves

• Weeks $6\text{–}9$: Types of climate (Hot: Equatorial and Sudan climate; Cold: Polar and Tundra; Desert: hot and cold; Temperate climate) and Classification of climate (Greek system, Koppen's system)

• Week $10$: Environmental resources (Types of resources, Renewable and non-renewable)

• Week $11$: Revision

• Week $12$: Examination

Week 1: Basic Concepts of Geographic Information System (GIS)

Definition of GIS

• Geographic Information System (GIS) is a computer-based system used to collect, store, analyse, manage, and display geographically referenced data (spatial data).

• Core Functions of GIS in Simple Terms:

  • Study the Earth

  • Analyse locations

  • Understand patterns and relationships in space

Key Terms in GIS

• Geography: The study of the earth and its features, and the relationship between people and their environment on earth.

• Data: Raw facts or figures that can be processed.

• Spatial Data: Data that has a location on the Earth's surface.

  • Examples:

  • Location of Abuja

  • Rivers in Nigeria

  • Distribution of rainfall

• Attribute Data: Descriptive information about spatial data.

  • Examples:

  • Population of Abuja

  • Length of River Niger

  • Annual rainfall amount

• Information: Processed data that is meaningful.

• System: A set of connected parts working together.

• Remote Sensing: The use of satellites or aircraft to obtain information about the Earth without physical contact.

• GPS (Global Positioning System): A satellite-based navigation system used to determine exact locations on Earth.

Components of GIS

• Hardware: Physical equipment used in GIS.

  • Examples: Computers, GPS devices, Printers, Scanners, Plotters

• Software: Programs used to process GIS data.

  • Examples: ArcGIS, QGIS, Google Earth

• Data: This is the most important part of GIS. It includes Spatial data and Attributive data.

  • Primary Data Sources:

  • Satellite imagery

  • Field survey

  • Maps

  • Census data

• People: Trained personnel who operate GIS.

  • Examples: Geographers, Surveyors, Environmental planners, Urban planners

• Methods (Procedures): Rules and techniques for collecting and analysing data.

Functions of GIS

• Produce maps and store geographical data

• Support decision-making

• Carry out urban planning

• Predict environmental changes

• Assist in disaster management

• Support agricultural planning

• Support transportation planning

• Enhance resource management

• Analyse patterns and relationships in space

Applications of GIS

• Applications in Nigeria:

  • Flood mapping in the Niger Delta

  • Election boundary demarcation

  • Mining and oil exploration

  • Urban planning in major cities such as Abuja and Lagos

  • Environmental impact assessment

• Global Applications:

  • Climate change studies

  • Disaster monitoring (e.g., earthquakes, hurricanes)

  • Disease tracking

Limitations of GIS

• High cost of software

• Requirement for specialized, trained experts

• Data collection processes can be expensive

• Technical errors may occur during data processing

• Power supply instabilities (especially in developing countries like Nigeria)

Review Questions

• $1$. Define Geographic Information System (GIS).

• $2$. Explain the term spatial data.

• $3$. Differentiate between spatial and attributive data.

• $4$. List and explain the five main components of GIS.

• $5$. Mention three sources of GIS data.

• $6$. What is vector data?

• $7$. What is raster data?

• $8$. State three uses of GIS in Nigeria.

• $9$. Explain the importance of GIS in urban planning.

• $10$. What is remote sensing?

• $11$. Define GPS.

• $12$. Mention three GIS software.

• $13$. State four functions of GIS.

• $14$. Outline four advantages of GIS.

• $15$. State three limitations of GIS.

• $16$. Explain the relationship between GIS and geography.

• $17$. Describe the role of people in GIS.

• $18$. Mention two types of data used in GIS.

• $19$. Explain how GIS helps in disaster management.

• $20$. Differentiate between hardware and software in GIS.

Reference

• Essential Geography for Senior Secondary Schools by O.A. Iwena, pages $230\text{–}239$.

Week 2: Earth's External Processes – Action of Running Water

Meaning of Earth's External Processes

• Earth's external processes are natural activities or processes that occur on the surface of the Earth, leading to the creation or modification of various landforms.

• Primary Agents:

  • Running water

  • Wind

  • Glaciers

  • Waves

• Fundamental Geological Operations:

  • Erosion

  • Transportation

  • Deposition

Stages of River Development

• Early stage or Upper course of a river

• Mature stage or Middle course of a river

• Old stage or Lower course of a river

Major River Systems

• Rivers in Nigeria:

  • Niger

  • Benue

  • Cross

  • Kaduna

  • Sokoto

  • Owena

  • Osun

  • Ogun

  • Anambra

  • Imo

  • Hadejia

  • Gongola

  • Taraba

  • Donga

• Major Rivers in Africa:

  • Nile

  • Niger

  • Senegal

  • Congo

  • Orange

  • Limpopo

  • Zambezi

  • Volta

  • Okavango

  • Chari

Processes of River Action

• $1$. Erosion (Wearing away of the land surface):

  • Hydraulic action: The physical force of moving water dislodging material.

  • Abrasion (corrasion): The wearing away of the river bed and banks by materials carried by the river.

  • Attrition: The wear and tear that occurs when boulders and stones collide with each other and break into smaller pieces.

  • Solution (corrosion): The chemical action of river water dissolving soluble rocks (e.g., limestone).

  • Note: Corrasion (mechanical wearing) is distinct from corrosion (chemical dissolving).

• $2$. Transportation (Movement of eroded materials):

  • Solution: Dissolved mineral matter is carried along invisibly.

  • Suspension: Fine particles like clay and silt are held up within the water body.

  • Saltation: Medium-sized pebbles and particles bounce along the river bed.

  • Traction: Large boulders and heavy materials roll or slide along the river bed.

• $3$. Deposition (Dropping of transported materials when velocity drops):

  • Primary locations of deposition:

  • Lower course of the river

  • Inside bends of meanders

  • At the river mouth or terminus

Characteristics and Features of River Stages

• Upper Course:

  • Characteristics:

  • Steep slope gradient

  • Fast water flow

  • Vertical and headward erosion are dominant

  • Landform Features:

  • Interlocking spurs

  • Waterfalls

  • V-shaped valleys

  • River capture

  • Plunge pools

  • Rapids and cataracts

  • Pot holes

  • Gorges

• Middle Course:

  • Characteristics:

  • Gentle slope

  • Lateral erosion becomes dominant

  • Deposition begins to occur

  • Water volume increases

  • Flow speed reduces

  • Landform Features:

  • Wide U-shaped valley

  • Meanders

  • Beginning of flood plains (depositional feature)

  • River cliffs and slip-off slopes

• Lower Course:

  • Characteristics:

  • Very gentle slope / nearly flat land

  • Deposition is the primary action

  • Landform Features:

  • Wide flood plains

  • Natural levees

  • Deltas:

    • Arcuate delta: Nile, Niger, and Po rivers

    • Bird's foot delta: Omo and Mississippi rivers

    • Estuarine delta: Amazon and Ob rivers

  • Oxbow lakes

  • Braided stream

Drainage Patterns

• Dendritic Drainage: Irregular branching structure resembling the veins of a leaf or tree branches.

• Trellis Drainage: Tributaries join the main stream at right angles following rock structures.

• Radial Drainage: Streams flow outwards and downhill from a central elevated point such as a crater or lava cone.

Review Questions

• $1$. Define erosion.

• $2$. List four processes of river erosion.

• $3$. Explain attrition.

• $4$. Differentiate between erosion and deposition.

• $5$. List four methods of river transportation.

• $6$. Describe features of the upper course.

• $7$. Explain formation of waterfalls.

• $8$. What is a gorge?

• $9$. Describe the mode of formation of meanders.

• $10$. What is an oxbow lake? How does it form?

• $11$. Define flood plain.

• $12$. State the characteristics of lower course.

• $13$. What is a delta?

• $14$. Explain how levees are formed.

• $15$. Mention two Nigerian rivers.

• $16$. Describe River Niger briefly.

• $17$. State three erosional landforms.

• $18$. State three depositional landforms.

• $19$. Explain lateral erosion.

• $20$. Outline importance of rivers.

Reference

• Essential Geography for Senior Secondary Schools by O.A. Iwena, pages $241\text{–}249$.

Week 3: Action of Wind

Wind as an Agent of Erosion

• Wind is the principal agent of erosion, transportation, and deposition in arid (desert) and semi-arid regions.

• Major Global Deserts:

  • Sahara (West Africa)

  • Namib (South Africa)

  • Atacama (South America)

  • Mohave (USA)

Processes of Wind Action

• Processes of Wind Erosion:

  • Deflation: The blowing away and lifting of loose, dry particles of rock, sand, and dust.

  • Abrasion: Sand-charged winds blast and sand-paper exposed rock surfaces.

  • Attrition: Air-borne sand particles collide against each other, breaking into smaller, rounded grains.

• Processes of Wind Transportation:

  • Suspension: Fine dust particles held in the air and carried over vast distances.

  • Saltation: Sand grains bouncing along the ground surface in a series of leaps.

  • Surface creep: Heavy, coarse sand particles rolling or sliding along the ground.

Landforms produced by Wind Action

• Erosional Features:

  • Deflation hollows

  • Desert pavement (deflation lag)

  • Inselbergs

  • Yardangs

  • Zeugens

  • Rock pedestals

  • Mesas and buttes

• Depositional Features:

  • Sand dunes:

  • Barchan dune (crescent-shaped dune)

  • Seif dune (longitudinal ridge)

  • Transverse dune

  • Blowout dune

  • Parabolic dune

  • Barchanoid ridge

  • Dome dune

  • Loess: Fine, fertile, yellow silt wind-borne and deposited far outside desert regions.

Review Questions

• $1$. Define deflation.

• $2$. Explain abrasion.

• $3$. Mention three wind erosion processes.

• $4$. What is a yardang?

• $5$. Describe desert pavement.

• $6$. Explain formation of sand dunes.

• $7$. Mention three types of dunes.

• $8$. What is loess?

• $9$. Differentiate between wind and river erosion.

• $10$. State importance of wind deposition.

• $11$. Explain attrition in wind action.

• $12$. Where is wind action most effective?

• $13$. What is surface creep?

• $14$. Describe barchan dune.

• $15$. Mention two deserts.

• $16$. Explain Sahara Desert briefly.

• $17$. State three erosional features of wind action.

• $18$. State three depositional features of wind action.

• $19$. Outline disadvantages of wind erosion.

• $20$. Suggest control measures.

Reference

• Essential Geography for Senior Secondary Schools by O.A. Iwena, pages $251\text{–}256$.

Week 4: Action of Glacier

Meaning and Distribution of Glaciers

• A glacier is a massive body of ice formed from accumulated, compacted snow that moves slowly downhill over land under the influence of gravity.

• Geographic Distribution:

  • Polar regions (Greenland, Antarctica)

  • High mountain ranges (Himalayas, Alps, Rockies)

Types of Glaciers

• Valley (Alpine) Glacier: Glaciers confined within mountain valleys.

• Continental Glacier (Ice Sheet): Massive ice sheets covering vast continental areas.

Processes of Glacial Erosion

• Plucking:

  • Meltwater freezes into rock joints and cracks on the valley bed.

  • As the glacier moves forward, it pulls and tears away rock fragments.

• Abrasion:

  • Rock fragments embedded in the base and sides of the moving glacier scour and rasp the bedrock surface.

  • Leaves smooth, polished, and striated rock surfaces.

Glacial Landforms

• Erosional Features:

  • Cirque (Corrie): An armchair-shaped or bowl-shaped hollow at the head of a mountain valley.

  • Formation: Snow accumulates in a mountain basin; freeze-thaw weathering, plucking, and abrasion deepen it; melting leaves a steep-sided basin.

  • Arête: A steep, knife-edged rock ridge formed between two adjacent cirques eroding backwards into each other.

  • Pyramidal Peak (Horn): A sharp, pointed mountain summit created when three or more cirques erode headwards into the same peak.

  • U-Shaped Valley (Glacial Trough): A steep-sided, flat-bottomed valley created when a glacier widens, deepens, and straightens a pre-existing V-shaped river valley.

  • Hanging Valley: A tributary valley ending high above the main glacial trough floor, often forming waterfalls.

  • Formation: Main glacier erodes deeper than tributary glacier.

• Depositional Features:

  • Moraines: Ridge-like accumulations of glacial debris (till).

  • Types: Lateral moraine (along valley sides), Medial moraine (down the center where two lateral moraines join), Terminal moraine (at the maximum extent of the glacier snout).

  • Drumlin: An elongated, oval-shaped hill ("egg-shaped") composed of unsorted glacial till.

  • Formation: Deposited under moving ice and streamlined parallel to ice flow.

  • Esker: A long, winding, serpentine ridge of stratified sand and gravel deposited by meltwater streams flowing beneath a melting glacier.

Review Questions

• $1$. Define glacier.

• $2$. Mention two types of glaciers.

• $3$. Explain plucking.

• $4$. Describe abrasion.

• $5$. What is a cirque?

• $6$. Explain formation of arête.

• $7$. Describe pyramidal peak.

• $8$. Differentiate U-shaped and V-shaped valley.

• $9$. What is a hanging valley?

• $10$. Define moraine.

• $11$. Mention types of moraines.

• $12$. Explain drumlin formation.

• $13$. Describe esker.

• $14$. State two erosional features.

• $15$. State two depositional features.

• $16$. Where are glaciers found?

• $17$. Mention one effect of glaciation.

• $18$. Explain continental glacier.

• $19$. Describe valley glacier.

• $20$. Outline importance of glacial landforms.

Reference

• Essential Geography for Senior Secondary Schools by O.A. Iwena, pages $252\text{–}257$.

Week 5: Action of Waves

Waves as an Agent of Marine Coastal Processes

• Ocean waves are generated by wind friction blowing across the sea surface. Waves continuously shape coastlines through erosion, transportation, and deposition.

Processes of Marine Erosion

• Hydraulic Action: The direct force of breaking waves striking coastal cliff faces and trapping air in cracks, expanding crevices.

• Abrasion: Waves hurl rock fragments, pebbles, and sand against cliff bases, grinding rock down.

• Attrition: Transported rock fragments continually collide against each other, grinding down into rounded pebbles and sand grains.

• Solution (Corrosion): Dissolving of soluble coastal rock formations (e.g., chalk, limestone) by coastal water chemistry.

Coastal Landforms

• Erosional Features:

  • Sea Cliff: Steep vertical rock face facing the ocean created by wave undercut.

  • Wave-Cut Platform: Flat, smooth rock bench left behind at the base of a retreating cliff.

  • Sequential Cave-Arch-Stack-Stump Complex:

  • Cave: Deepened hollow at a weakness in the cliff face.

  • Arch: Cave eroded entirely through a headland.

  • Stack: Isolated pillar of rock standing in sea water left when an arch collapses.

  • Stump: Undercut, collapsed stack base visible primarily at low tide.

• Depositional Features:

  • Beach: Accumulation of sand, shingle, and pebbles along the shoreline.

  • Spit: Long, narrow ridge of sand or shingle connected to land at one end, extending out into open water due to longshore drift.

  • Tombolo: Sand ridge or bar connecting an island to the mainland.

  • Sandbar: Submerged or exposed ridge of sand parallel to the coastline.

Review Questions

• $1$. Define waves in geography.

• $2$. Explain the term marine erosion.

• $3$. List and explain four processes of wave erosion.

• $4$. What is hydraulic action?

• $5$. Explain abrasion as a process of coastal erosion.

• $6$. Define attrition in relation to wave action.

• $7$. What is solution (corrosion) in coastal processes?

• $8$. Describe how a sea cliff is formed.

• $9$. Explain the formation of a wave-cut platform.

• $10$. Describe the stages involved in the formation of cave, arch, stack, and stump.

• $11$. What is a coastal cave?

• $12$. Explain how a sea arch is formed.

• $13$. Describe the formation of a stack.

• $14$. What is a beach? Explain how it is formed.

• $15$. Define longshore drift.

• $16$. Explain the formation of a spit.

• $17$. What is a tombolo? Describe its formation.

• $18$. Differentiate between erosional and depositional coastal features.

• $19$. Mention three erosional and three depositional features of waves.

• $20$. State four ways in which wave action affects human activities along the coast.

Reference

• Essential Geography for Senior Secondary Schools by O.A. Iwena, pages 260\text{–}265$.\n\n# Weeks 6–9: Types and Classification of Climate\n\n## Hot Climates\n\n- Equatorial Hot Climate:\n - Geographic Location: 0^ullet\text{–}5^ullet\text{ North and South} (Congo Basin, Amazon Basin, Coast of West Africa)\n - Key Features:\n - High temperature (26\text{–}28\,^\circ\text{C}) sustained throughout the year\n - Heavy annual rainfall exceeding 2000\,\text{mm} with no distinct dry season\n - High relative humidity (consistently over 80\%)\n - Dense equatorial rainforest vegetation with thin undergrowth\n - Heavy cloud coverage\n - Economic Activities: Lumbering, hunting, plantation farming, fishing\n- Sudan Hot Climate (Tropical Savanna):\n - Geographic Location: 5^\circ\text{–}20^\circ\text{ North and South} (Northern Nigeria, Ghana, Sudan, East Africa, Brazil [Campos], Bolivia, Australia, India, Southeast Asia)\n - Key Features:\n - Alternating distinct wet and dry seasons\n - Annual rainfall ranging between 1000\,\text{mm}$and$1500\,\text{mm}\n - Vegetation dominated by tall grasses and scattered short trees\n - Clear, cloudless skies during dry seasons\n - Economic Activities: Pastoral livestock farming, arable crop farming, hunting, wildlife reserves / tourism\n\n## Desert Climates\n\n- Hot Desert Climate:\n - Geographic Location: 15^\circ\text{–}30^\circ\text{ North and South}\n - Key Features:\n - Extremely high daytime temperatures\n - Very low annual precipitation (< 250\,\text{mm})\n - Rare, sudden, violent convectional downpours\n - Cloudless skies with high diurnal temperature ranges\n - Drought-resistant (xerophytes) and salt-tolerant (halophytes) sparse vegetation\n - Economic Activities: Food gathering, nomadic pastoralism, mineral mining\n- Cold Desert Climate:\n - Geographic Location: 45^\circ\text{–}60^\circ\text{ North and South} (Eurasian interior, Patagonia in South America, Central Asia / Mongolia)\n - Key Features:\n - Low annual precipitation (< 250\,\text{mm})\n - Extreme annual range: hot summers (38\,^\circ\text{C}$) and freezing winters ($-7\,^\circ\text{C})\n - Sparse vegetation: short grasses and dry shrubs\n - Economic Activities: Food gathering, nomadic pastoralism\n\n## Cold Climates\n\n- Polar Climate:\n - Geographic Location: Around 90^\circ\text{ North and South} (Antarctica, Greenland, Iceland)\n - Key Features:\n - Temperatures remain below freezing (0\,^\circ\text{C})\n - Permanently snow and ice-covered surface (no vegetation)\n - Low precipitation (10\text{–}15\,\text{cm})\n - Violent blizzards\n - Continuous long dark winter nights and short summer days\n- Tundra Climate:\n - Geographic Location: 60^\circ\text{–}90^\circ\text{ North and South} (Northern Canada, Greenland, Alaska, Siberian Eurasia, Antarctica fringe)\n - Key Features:\n - Short, cool summers (10\,^\circ\text{C}$) and long, severely cold winters ($-29\,^\circ\text{C}\text{ to }-40\,^\circ\text{C})\n - Low precipitation (250\,\text{mm})\n - Presence of permafrost (permanently frozen subsoil)\n - Vegetation: Mosses, lichens, crowberry, dwarf birch, Arctic poppy, anemone\n - Economic Activities: Hunting (Eskimos), fishing during summer\n\n## Temperate Climates\n\n- Western Warm Temperate (Mediterranean Climate):\n - Geographic Location: 30^\circ\text{–}45^\circ\text{ North and South} (Mediterranean basin, North Africa [Tunisia, Morocco, Libya], SW South Africa, Central Chile, California, France, Spain, Italy)\n - Key Features:\n - Hot, dry summers\n - Mild, wet winters (600\text{–}800\,\text{mm} rainfall)\n - Prominent local wind systems (Sirocco wind, Mistral wind)\n - Vegetation: Oak, cedar, grapevines, coniferous trees (pine, fir), acacia, laurel, rosemary, maquis scrub, grasses\n - Economic Activities: Viticulture (grape cultivation), fruit orchard farming, wheat and rice farming, pulp and paper manufacturing\n- Eastern Warm Temperate (China Type Climate):\n - Geographic Location: 20^\circ\text{–}40^\circ\text{ North and South} (Eastern margins of China, Japan, USA, Mexico, Australia, South Africa)\n - Key Features: Warm wet summers and cool dry winters\n- Western Cool Temperate (British Type Climate):\n - Geographic Location: 45^\circ\text{–}60^\circ\text{ North and South} (United Kingdom, Western Europe)\n - Key Features:\n - Warm summers and mild winters\n - Rainfall distributed evenly throughout the entire year\n - Vegetation: Deciduous trees (oak, elm, birch, beech, eucalyptus)\n - Economic Activities: Arable and market garden farming, mixed livestock farming\n- Eastern Cool Temperate (Laurentian Type Climate):\n - Geographic Location: 40^\circ\text{–}50^\circ\text{ North and South} (North-Eastern Canada, North-Eastern USA / North America)\n - Key Features:\n - Cold dry winters and warm wet summers\n - Vegetation: Coniferous trees (spruce, fir) mixed with deciduous trees (maple, birch, beech, oak)\n\n## Systems of Climate Classification\n\n- Greek Climate Classification System (Aristotle):\n - Basis: Based exclusively on temperature parameters.\n - Temperature Zones:\n - Torrid Zone: Hot central equatorial band\n - Temperate Zone: Moderate middle latitude zones\n - Frigid Zone: Extremely cold polar zones\n\n\n\n- Köppen's Climate Classification System:\n - Basis: Quantitative system using letter codes based on monthly temperature and precipitation values.\n - Primary Climate Groups:\n - Group A: Tropical moist climates (Hot and wet rain forests & Savannas)\n - Group B: Dry climates (Steppe / Semi-arid and Arid Deserts)\n - Group C: Warm temperate / Mild humid mid-latitude climates\n - Group D: Cold snowy forest climates / Severe mid-latitude winters\n - Group E: Polar / Frigid climates (Tundra and Ice Cap)\n\n## Review Questions\n\n- 1. Discuss the characteristics of Mediterranean climate.\n- 2. Oak and cedar are good examples of commercial trees common in the \_\_\_\_\_\_\_\_\_\_ climate.\n- 3. Differentiate between hot and cold desert climates.\n- 4. Highlight three differences between polar cold climate and tundra cold climate.\n- 5. What are the differences between Equatorial and Sudan climates?\n- 6$. List$7 hot deserts and the country or region where they are located.\n- 7. Explain why rainfall is heavy in equatorial regions.\n- 8. Describe the main features of the tropical savanna.\n- 9. State two countries in which tropical savanna climate is found.\n- 10. Explain why temperature remains low throughout the year in polar regions.\n- 11. Describe the vegetation of the savanna region.\n- 12. Describe the vegetation of the equatorial climate.\n- 13. Equatorial hot climate is experienced in which regions of the world.\n- 14. Describe the temperature of a typical hot desert during the day and at night.\n- 15. Equatorial hot climate supports plantation farming. Why?\n- 16. Why is wildlife conservation for tourism popular in Sudan climate?\n- 17. What does Campos mean?\n- 18. Differentiate between Mediterranean climate and China type.\n- 19. Describe the Greek system of classification in detail.\n- 20. Describe Koppen's system of classification.\n- 21$. State$4 advantages of Koppen's classification over Greek's system.\n\n## Reference\n\n- Essential Geography for Senior Secondary Schools by O.A. Iwena, pages 268\text{–}283$.

Week 10: Environmental Resources

Meaning and Types of Environmental Resources

• Meaning of Resources: Materials, substances, or components found naturally within the environment that are valuable and useful to humans for satisfying basic needs.

• Categories of Resources:

  • Atmospheric Resources: Air, wind, solar radiation, ozone layer, water vapour, precipitation/rain.

  • Water Resources: All surface and subsurface water systems including aquatic organisms and dissolved minerals.

  • Forest Resources: Natural flora, timber, vegetation cover, and associated wild fauna.

  • Human Resources: Human labor force, intelligence, skill, and technology.

  • Mineral Resources: Non-renewable subsoil metallic, non-metallic, and fuel deposits.

Renewable and Non-Renewable Resources

• Renewable Resources:

  • Definition: Natural resources that replenish or replace themselves naturally through natural cycles within a relatively short period.

  • Examples: Solar energy, wind energy, flowing water / tidal energy, soil, plants / forests, animals.

  • Characteristics:

  • Naturally restored after utilization

  • Highly sustainable if managed correctly

  • Inexhaustible under normal environmental cycles

  • Environmentally friendly

  • Dependent on continuous ecological systems

  • Advantages:

  • Do not get easily exhausted

  • Minimal carbon footprint / eco-friendly

  • Reduces global pollution

  • Ensures long-term sustainability

  • Cost-effective long-term operation

  • Disadvantages:

  • Intermittent supply dependent on short-term weather

  • High initial installation costs

  • Vulnerable to depletion if mismanaged (e.g., deforestation)

• Non-Renewable Resources:

  • Definition: Natural resources that exist in fixed finite quantities and cannot be replaced once exhausted, or require millions of years to form.

  • Categories & Examples:

  • Fossil Fuels: Crude petroleum oil, coal, natural gas

  • Metallic Minerals: Iron ore, copper, aluminum, gold, tin, bauxite

  • Non-Metallic Minerals: Salt, phosphates

  • Nuclear Fuels: Uranium

  • Characteristics:

  • Finite and limited in total supply

  • Takes millions of geological years to form

  • Highly exhaustible

  • Irreplaceable once consumed

  • Causes environmental pollution during extraction and usage

  • Advantages:

  • Exceptionally high energy output

  • Reliable and continuous supply independent of weather

  • Established transport and storage infrastructure

  • Primary raw materials driving global heavy industry

  • Disadvantages:

  • Subject to total depletion

  • Causes atmospheric pollution and environmental degradation

  • Drives anthropogenic climate change

  • Price volatility and expensive long-term environmental costs

  • Mining damages ecosystems and causes land degradation

Resource Conservation Methods

• Afforestation and reforestation (planting trees)

• Recycling scrap metals, plastics, and glass

• Waste minimization and industrial reduction

• Transitioning to sustainable alternative energy sources (solar, wind, hydro)

• Enforcing strict government environmental legislation and regulations

Review Questions

• $1$. Define resources.

• $2$. What are renewable resources?

• $3$. Give four examples of renewable resources.

• $4$. Explain two characteristics of renewable resources.

• $5$. State two advantages of renewable resources.

• $6$. Mention two disadvantages of renewable resources.

• $7$. Define non-renewable resources.

• $8$. Give four examples of non-renewable resources.

• $9$. Explain how fossil fuels are formed.

• $10$. State three characteristics of non-renewable resources.

• $11$. Mention three advantages of non-renewable resources.

• $12$. Outline three disadvantages of non-renewable resources.

• $13$. Differentiate between renewable and non-renewable resources.

• $14$. Explain the term conservation of resources.

• $15$. List four methods of conserving resources.

• $16$. Why are non-renewable resources considered exhaustible?

• $17$. Explain why solar energy is renewable.

• $18$. Describe two environmental effects of using fossil fuels.

• $19$. State two examples of mineral resources.

• $20$. Explain the importance of renewable resources to future generations.

Reference

• Essential Geography for Senior Secondary Schools by O.A. Iwena, pages $285\text{–}293$.