Geography Exam Set

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Population density

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Geography

Nat 5 2023

135 Terms

1

Population density

the number of people living in a square kilometre

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2
<p>Population distribution</p>

Population distribution

how people are spread out across an area

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3

Relief

describes the shape and height of the land

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4

Infrastructure

provision of services (water supply, electricity, roads etc) within an area

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5

Positive factors affecting population density

access to services, fertile soil, high employment, accessible, varied climate, few natural natural disasters

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6

Negative factors affecting population density

conflict, lack of services, poor soil, unemployment, pollution, few natural resources, extreme climate, land relief

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7

Birth rate

no. of babies born per 1000 people in a year

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8

Death rate

no. of people who die per 1000 people in a year

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9

infant mortality rate

no. of babies who die before their first birthday

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10

Reasons for a low birth rate

  • childcare is expensive

  • birth control/contraception available

  • improved status of women

  • education of girls

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11

Reasons for high birth rates

  • early marriage

  • lack of family planning and contraception

  • children needed to work

  • cultural tradition for large families

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12

Reasons for low death rates

  • old age pensions

  • clean water supply

  • improved healthare

  • reliable food supply

  • sanitation

  • mechanisation in working

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13

Reasons for high death rates

  • disease or illness

  • war

  • food shortage

  • high infant mortality rate

  • lack of clean water and sanitation

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14

Population structure

number and distribution of different age groups in a population

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15

Population pyramids

a graph made up of two bar graphs showing the number of males and females in each 5 year age group

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16

Young dependants

someone under the age of 15 - no income as they do not work so relies on the state and their parents to provide for them

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17

Economically active

aged 16-64 who are working - help to provide for others by paying taxes

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18

Elderly dependants

people aged 65+ who no longer works and do not pay income tax so depend on the state

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19

Consequences of youthful population

  • land must be farmed intensively to supply food

  • many people in urban areas shanty towns

  • unemployment rates if not enough jobs

  • demand for education and services goes up

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20

Solution to youthful population

  • promotion of family planning

  • keeping girls in education

  • increasing legal age of marriage

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21

Benefits of an ageing population

  • some businesses make more profit

  • more childcare and support form grandparents

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22

Problems of an ageing population

  • fewer people of working age so fewer tax payers

  • rise in retirement age

  • lack of young workforce

  • increase in cost of health care

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23

Development

any improvement made in the standard of living

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24

What are social development indicators about?

to do with the quality of life of individuals in the country

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25

What are economic development indicators about?

those to do with the wealth of individuals in the country

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26

Social indicator examples

  • life expectancy

  • birth and death rate

  • literacy rate

  • infant mortality

  • food intake

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27

Economic indicator examples

  • GDP (totals money by all workers)

  • GDP per capita (wealth shared out equally)

  • energy per person

  • people per doctor

  • primary employment

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28

Human Development Index (HDI)

composite indicator used by UN of life expectancy, literacy rate and GDP per capita to cover health, education and economy in a country.

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29

Mouth

where the river flows into sea/lake

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30

Tributary

a river that joins a larger river

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31

Catchment

area from which water drains into a particular drainage basin

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32

Source

upland area where river begins

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33

Watershed

boundary diving two drainage basins

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34

Confluence

point at which two rivers join

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35

Wetted perimeter

where the river water touches the beds and banks

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36

Erosion

wearing away of the land

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37

Hydraulic action

the strong of river dislodges particles from bed and banks

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38

Abrasion

when bed and banks are worn down by the rivers load

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39

Altrition

material in river bumps into each other - smoothed and broken into smaller particles

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40

Corrosion

chemicals in river slowly dissolve beds and banks

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41

Traction (1)

boulders and pebbles rolled along river bed at highest discharge

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42

Saltation (2)

Sand sized particles bounce along bed in a leap frog movement

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43

Suspension (3)

fine clay/sand particles carried at low discharge

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44

Solution (4)

minerals dissolved into water - very little energy

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45

Deposition

rivers deposit load when energy is lost

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46

V-shaped valley

Upper course feature - vertical erosion of the river causes a V-shaped valley

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47

Interlocking spurs

Upper course feature - when river meets areas of harder rock that is difficult to erode it winds round it and hills form on either side

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48

Formation of a waterfall

river meets a bander a softer rock and erodes it more quickly, undercutting the hard rock - this overhang collapses and the waterfall retreats upstream

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49

Gorge

a steep sided river valley created from the waterfall retreating

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50

Meander

middle course feature - a river flows around bends causing areas of faster and slower water - lateral erosion

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51

Ox-bow lake

middle cruse feature - a flood cuts across a meander and take a new course so an horse shoe shaped lake is remaining

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52

Levees

lower course feature - when a river floods, the heaviest particles of its load are deposited first - creating a natural embankment

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53

Physical features of river you could describe

width, length, straightness, direction of flow, features, tributaries

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54

Physical features of valleys could describe

shape, gradient, height, interlocking spurs, features

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55

Land uses around the River Tay

farming, forestry, renewable energy, recreation and tourism, industry and settlement

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56

Upper course land uses

  • sheep farming

  • HEP

  • tourism eg. rafting

  • foresty

  • windfarms

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57

Middle course land uses

  • dairy/arable farming

  • tourism eg. camp sites

  • fishing

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58

Lower course land uses

  • arable farming

  • dairy farming

  • industry eg. ships

  • tourism eg. boat trips

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59

Conflicts on the River Tay

  • wind-farms vs. tourists

  • white water rafting vs. fishermen

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60

Examples of high order services

leisure centres, chain stores, hospitals

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61

Examples of low order services

post offices, doctors, newsagents

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62

Central Business District

city centre where most of the shops, offices are and where transport routes meets

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63

Inner City

old industrial part of the city directly next to CBD. where old 19th century housing and factories are found

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64

Suburbs

Residential and shopping areas on the edge of the city with plenty of space

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65

Most expensive land values

in the CBD as space is limited

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66

Buildings in the CBD

old historic buildings such as cathedrals, museums, galleries

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67

Retail in the CBD

shopping malls, high order shops, dapeament stores

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68

Transport in the CBD

Route centre where all the arterial roads meet, has the main bus and train station

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69

Tourist services in the CBD

tourist info centre, chain restaurants and bars, theatres, hotels

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70

Changes to Edinburgh's CBD - shopping

The new St James Centre shopping mall was built to improve the visual appearance of the city centre and attract shoppers back into the city by protecting them from the Scottish weather.

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71

Changes to Edinburgh's CBD - cycle lanes

Cycle lanes have been introduced to reduce traffic in the CBD and encourage cycling to reduce air pollution.

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72

Changes to Edinburgh's CBD - New concert hall

To boost Edinburgh's image as a centre for arts and provide another venue for the International Festival.

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73

Changes to Edinburgh's CBD - High ends shops such as Multrees Walk

To attract shoppers to the CBD to improve and economy and provide retails experience to compete with online shopping.

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74

Housing in the Inner City

19th century tenement housing in high density, built orginally for factory workers

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75

Brownfield sites

empty derelict land in the inner city form old industrial buildings

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76

Grid iron street pattern

long straights rows of houses in the inner city

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77

Housing in the rural/urban fringe

detached housing with gardens and driveways in cul-de-sacs

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78

Industry and shopping in the rural/urban fringe

Modern industry such as shopping centres, financial services and quaternary industry

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79

Greenbelt

protected countryside which has strict strict planning controls at edge of the city to stop urban sprawl

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80

Greenfield sites

farmland which is ideal for building on

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81

Advantages of urban sprawl

  • space for businesses to expand

  • cheap land values

  • flat land easy to build on

  • affordable housing for growing population

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82

Disadvantages of urban sprawl

  • wildlife habitats destroyed

  • increased traffic congestion in edge of city

  • spoils countryside's natural beauty

  • inner city areas become run down as people move away

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83

Urbanisation

movement of people form the countryside to the city

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84

Solutions to shanty towns - Dharavi redevelopment project

Project plans to demolish parts of Dharavi and build high rise flats to regime people. Many don't like this as they won't have their businesses

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85

Solutions to shanty towns - Slum Rehabilitation

Government would provide toilets, piping, reinforced housing, schools, healthcare facilities to improve the shanty town

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86

Solutions to shanty towns - Self Help schemes

Encourage residents to improve the area themselves - they can ask gov for loans to build toilets, water supply and negotiate with authorities about electricity etc

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87

Solutions to issues in shanty towns - Navi Mumbai

reducing over population by taking the overspill out of Mumbai to new part of the city

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88

Bottom Up management advantages

  • residents get a say

  • doesn't cost gov as heavily

  • areas improved

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89

Bottom Up management disadvantages

  • cannot do sewage/toilets themselves

  • only works on a small scale

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90

Top-down management advantages

  • better safer housing created with toilets, running water etc- safer for children

  • improved life

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91

Top-down management disadvantages

  • low tax - gov don't have enough money-

  • may be rehoused far way and have to change job

  • construction often stalled to lack of finance

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92

Bedding planes

horizontal cracks in the limestones created when the sediment was building up in layers

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93

Joints

vertical cracks formed when tectonic activity lifted limestone

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94

Permeable

Water can pass through limestone's bedding planes and joints

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95

What is limestone made of?

calcium carbonate

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96

chemical weathering

when rainfall combines with carbon dioxide and creates a weak carbonic acid which dissolves limestone

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97

Formation of limestone pavements

  1. bedding planes due to layers of sediment and joints due to tectonic activity

  2. during glaciation, ice scraped away topsoil

  3. bare rock is permeable

  4. carbonation dissolve rock, carried in solution

  5. continued chemical weathering widens and deeps bedding planes and joints

  6. Blocks called clints and gaps called grikes

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98

Formation of swallow holes

  1. bedding planes and joints

  2. surface water passes over impermeable rock until reaches permeable limestone

  3. water flows down a joint and dissolves rock to form a swallow hole

  4. process of carbonation causes hole to become larger over time

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99

Formation of intermittent drainage

  1. streams flowing onto limestone disappear down swallow holes

  2. they flow along bedding planes and down joints

  3. when stream hits impermeable rock, they have to flow overtop until they reach the surface

  4. when underground water comes to surface it is called a resurgence stream

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100

Formation of caves and caverns

  1. joints and bedding planes = permeable

  2. water flows underground through a swallow hole until it reaches impermeable rock

  3. carbonation takes place and dissolves limestone

  4. areas with lots of BPs and joints close together means large areas of rock are dissolved quickly

  5. the space left is a cave or caverns

  6. walls may be eroded further by abrasion due to water carries stones

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