Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Geography > population and environment > Flashcards

population and environment Flashcards

1
Q

Biosphere

A

The biological component of Earth systems, the part where life exists
also know as Ecosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Biotic potential

A

Number of births controlled by the natural reproductive potential of the species and survival rates of offspring.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Carrying capacity

A

A calculation of how large a population any given environment can support

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Density dependent

A

There are limiting factors which restrict population growth, factors caused by the size of the population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Density independent

A

Factors not associated with size of population but restrict growth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Ecological footprint

A

A measure of demand placed by humans on Earth’s natural ecosystems, the total area of productive land and water required to produce the resources a population consumes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Environmental resistance

A

Death rates controlled by environmental factors that prevent survival

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Global hectares (gha)

A

the total biologically productive area of Earths natural systems available to provide food, water, energy and other resources that we use as humans and to absorb the waste

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Over population

A

Too many people for the available resources

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Optimum population

A

An ideal balance between population and resources

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Overshoot

A

A point when a populations consumption of resource exceeds the long term capacity of the environment to regenerate the resources being consumed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Total productive bio-capacity

A

A unit of measurement which represents the average productivity of all biologically productive areas on Earth in a given year

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Under population

A

Too few people to use the available resources effectively

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Permanent migration

A

Permanent change of residence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Temporary migration

A

people cross state boundaries and stay in bait state for minimum length of time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Economic migrant

A

Daily movements to and from home
Seasonal movements for agriculture
International migrants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Refugee

A

Forced to leave country in order to escape war, prosecution, natural disaster

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Step migration

A

migrating in a series of shorter movements from place of origin to destination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

International migration

A

Person who travels from one country or area to another to improve their standard of living

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Asylum seeker

A

left home country as political refugee seeking asylum in another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Forced migration

A

follows natural disaster, persecution, war
could be result of gradual deterioration of economic opportunities

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Voluntary migration

A

current circumstances and hope of better standard of living possible elsewhere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Dhaka, Bangladesh

A

more than 44,500 per km2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

between 2000-2013 India has experienced

A

-BR 21 to 20 per 1000
-FR 3 to 2 births per woman
-life expectancy 62 to 66 by 2014

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
ability to control diseases
-penicillin 1948 -sanitation late 1800s -antibacterial products 1950s -mosquito nets 1970s -antiretroviral drugs 1990s
26
Egypt
pop density unraveled distributed due to access to Nile
27
densely populated areas related to water supply or resource distribution.
-ganges valley india -eastern china -SE asia -NW europe
28
areas of pop sparsity in 2020 correlated with
-deserts -continental interiors -coke temps in siberia and canadian shield
29
climate effects on pop
- Mauritania W Africa -pop density 3.36 pr km2 -90% desert
30
soils on pop
-Greenland -pop density 0.03 per km2 -ice/permafrost
31
topography on pop
- Bhutan E Himalayan Mountains -16.52 per km2
32
resource distribution on pop.
-Namibia S Africa -2.56 per km2 -desert
33
population 2023 and expectation
-8 billion -projected to reach 9.7B by 2050
34
Asia
-60% of worlds pop -india and china have most
35
early 1960s
- global food supplies= 2,300 kcal per person per day -poor countries=below 2,000
36
2015
-enough food to provide everyone with more than 2,940kcal a day
37
malnutrition
820M suffering from it in 2018
38
good consumption
-mid 1960s to 2015 increase by nearly 600 kcal a day
39
regions suffering from undernourishment
-sub saharan africa - south, central and eastern Asia
40
arable
cereal, root crops, flat land, higher quality soils UK=potatoes
41
pastoral
livestock rearing, semi-desert regions of W Africa
42
mixed farming
- arable and livestock -UK
43
intensive
-high investment in labour and/or capital (machinery) -horticulture in Cornwall
44
commercial
-farmers/ agribusiness specialising in single crop -grain in N America
45
extensive
-low inputs of labour machinery and capital, large areas of land -Hill Sheep farming Snowdonia
46
subsistence farming
-direct production of sufficient food to feed a family/ community -tribes in venezuela
47
labour intensive
-man power, little capital -fruit picking
48
UPH
- estimated 200M people engage in urban agriculture contributing to food supple of 800M urban dwellers
49
global security in the urbanising world
-by 2050 2/3 will live in urban areas - in next 20yrs 95% of world’s pop growth will occur in developing nations -80% of food for cities comes from domestic sources in rural areas
50
rice
-rainfall -16-27° -alluvial and clay soils
51
potatoes
-less rainfall -18-20° -loose and sandy soil
52
CC and agriculture
-people in sub saharan africa to be affected the most, agriculture 23% of economy
53
topsoil
36B tonnes lost a year due to water erosion and deforestation
54
wind erosion control
increase plant cover by up to 50%?
55
salinisation.
10% of all arable land affected
56
GAFSP
-world needs to produce 50% more food by 2050 -by 2018 had allocated $1.7B to projects to tackle hunger
57
post production losses
about 25% of food for human consumption goes uneaten
58
Uganda
risk is constant threat of food poisoning caused by a flatoxin contamination, so widespread in east africa it’s an epidemic
59
food storage to stop food poisoning
-FAO built more than 45,000 metal storage silos in 16 developing countries
60
good loss and waste reduction targets
EU announced target of reducing food loss and waste by 50% in 2050
61
most places below replacement level fertility
2 children per woman
62
sub saharan africa FR
above 5 children per woman
63
between 2000-2016
-HIV/Aids no longer in top 10 causes of death -respiratory infections ^ -tuberculosis down -diabetes now in top 10
64
NCDs
responsible for 71% of all deaths in 2018
65
In 2016 WHO
-suggested if 41M deaths caused by NCDs -15M between 30+69 -low and middle income countries affected with 32M of all the deaths
66
flooding
responsible for 24% deaths from natural disasters in 2018
67
ambient air pollution
causes 16% of lung cancer deaths
68
Greenpeace report
22 of 30 most polluted cities were in India
69
WHO 2017
3.8M deaths due to household air pollution
70
Niger
highest BR and FR 2018, 46/1000
71
East Timor
98% catholic FR 5 per woman
72
UK labour
1/2 labour force woman FR 1.89
73
Niger child marriage
-3/4 girls married before 18 -FR 6.6
74
Brazil 2018
had a demographic dividend
75
causes of migration
-syrian children can’t attend school -syrian civil war erupted in 2011 left for Europe
76
patterns of migration
-Eastern Mediterranean becoming primary maritime route in 2015 - more than 155,000 crossed from Serbia to Hungary -migrants arriving in Europe by sea in 2015: 25% under 18 and 58% males over 18
77
consequences of migration
-summer 2015 at least 9 dues trying to reach britain -nearly 3,000 perished crossing mediterranean -turkey spent more than US$6B hosting refugees
78
overpopulated country
Philippines
79
underpopulated country
norway
80
skin cancer
-australia and NZ worst prevalence 33/1000 - only 2000 die a year
81
fertility rate
-1960 4.98 -2015 2.45
82
by 2050
africa will experience most rapid pop growth more than 2x
83
by 2030
india projected to overtake china in most populous
84
USA and nigeria
USA currently has 3rd biggest population but UN predicts Nigeria likely to rise 7th to 3rd by 2050
85
USA
opted out of paris climate agreement in 2017

Geography (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions