Introduction to population

Question 1

Estimate global population change

Answer 1

canada and usa = little change
africa going to experience biggest change - lack of education and low development
russia = decrease
india = one of the fastest growing populations in world

Question 2

What is the carrying capacity?

Answer 2

maximum population size of the species that the environment can sustain

Question 3

when did world population reach 7.3 billion?

Answer 3

july 2015

Question 4

world Population increase…

Answer 4

gradual increase since 1760’s from 1950-2015 rapid growth

Question 5

why did population start to increase?

Answer 5

due to people living longer - ageing population

Question 6

what does the UN predict population will reach by 2100?

Answer 6

11 billion

Question 7

what is population distribution?

Answer 7

the pattern of where people live

Question 8

population density

Answer 8

the number of people living in an area usually per km2

Question 9

where is Niger?

Answer 9

in the sahel region of Africa

Question 10

what is niger?

Answer 10

the poorest country on the planet

Question 11

where was niger ranked?

Answer 11

in 1960 it was ranked 13th and now it is ranked 3rd

Question 12

why might farming affect population growth?

Answer 12

increase in farming leads to more population being needed to work
need more children to work

Question 13

main reasons for growth

Answer 13

large family sizes are a cultural norm 
increase in farming - more people needed for work 
in poverty - not education etc 
highest fertility rate 
lack of political stability 
high infant mortality

Question 14

how has culture shaped population?

Answer 14

large family sizes = cultural norms

Question 15

problems with over population

Answer 15

uk population grown by over 21 mil 
run out of resources 
immigration 
increase in rent 
lack of space 
lack of housing 
very expensive 
no jobs 
crowded
strain on transport

Question 16

what are the elements in the physical environment?

Answer 16

climate 
soils 
water supply 
geology and other resource distributions 
population parameters 
role of developmental processes

Question 17

climate

Answer 17

• arguably most important
• rainfall, temperature and wind velocity all determine food productivity
• climate change arising from GW is the aspect of the environment giving the greatest concern to human population

Question 18

soils

Answer 18

• most important feature of soils is it’s fertility
• features of soil determine agricultural output e.g soil structure
• areas with fertile soils are often associated with densely populated areas- due to agricultural output

Question 19

water

Answer 19

• hygiene
• sanitation
• people need water in order to survive
• key use is for irrigation to maintain food production

Question 20

geology and other resource distributions

Answer 20

concentrations of other resources such as fossil fuels or other valued minerals have given rise to industrialisation and consequently densley populated areas in europe

Question 21

what are population parameters?

Answer 21

they are an element of the physical environment which determine density and distribution of population

Question 22

role of developmental processes

Answer 22

• development surges have sparked technological advances which have enabled areas to support a larger human population.
• ability of human race to control many infectious diseases has accounted for population rise
• rapid population growth and process of development have had a largely negative impact on the environment