Geography
⑧
Earth natural resources
A natural resource is something which occurs naturally -
without any help from us
A renewable resource is one that we can keep using, and it will
not run out. For example sunlight or wind
Non-renewable resource cannot be renewed. For example oil or
natural gas
Where are the natural resources?
Natural resources are found everywhere. But not shared equally
For example, all countries get rain - but some get very little, and
others get lots
&
Water
Water is very important to us. But only 3% of earth's water is
drinkable. Other 97% is salty
In UK 28% water comes from groundwater, pumped up from
aquifers. The rest pumped from rivers or from reservoirs -
artificial or natural lakes, fed by rivers and streams.
What do de use this water for?
Industry 19%
Farming 70%
Domestic use 11%
This is for UK, in different countries water is used for
differently
Unfortunately, he don't have enough water, a lot of countries already
have water crisis
Steps of water cycle
1. Water vapour from oceans condense to fresh water
and falls as rain
2. Rain falls unequally, so some countries get more
rain
3. Rains soaks underground, some we pump out to drink
4. Rain as well goes into rivers, so we pump out as well
Earth population is increasing, so we get less and less water
Water stress
This is
Ogallala
The Ogallala is a huge aquifer. It covers 450 000 sq km -
more than twice the area of Britain. It lies beneath the Great
Plains, a region which runs from Canada down the middle of
the USA. Eight American states share the aquifer.
There is not enough rain to cover this aquifer but people still
pump water from it. Water level is falling
Tackling water stress
1. Catch it as it falls (catch rain when raining)
2. Stop wasting water
3. Recycle it
4. Move it(water transfer project)
5. Take it from the sea( Nature turns salty sea water
into fresh water, in the water cycle.
We can do it faster, in a process called desalination)
O
Food
UK has a high level of food security.
Food security is when people have access, at all times, to enough
safe and nutritious food for a healthy and active life. But not
everyone in the UK can afford enough food. Many families struggle
with food insecurity.
Food security
Availability (enough food supply)
Accessibility (you get food without descrimination)
Affordability (you have enough shops and affordable
prices)
Food insecurity causes
Climate Poor market access
Poverty Employment unavailability
Property right failure Food price increase
Lack of education
Self sufficient - no need help from outside
Our food security can be at risk because of some factors
1. Population growth
2. Politics
3. Climate change
We could build more large greenhouses, heated by electricity from
renewable sources, to grow food all year round. We could use
hydroponics. We could grow meat in factories
We can fight food insecurity in Africa using technology
Energy
Solar power
I
Advantages Disadvantages
Combat climate change Generates power on
: Decreases pollution
Reliable source of power
smaller places
Can disrupt wildlife and
migration patterns
Power can be intermittent
Fossil fuels give us a lot of advantages, but disadvantages
as well
Where world got it's energy in 2019
Oil 33.1% Coal 27% Gas 24%
Nuclear 4.3% Other 0.9%
Hydropower 6.4% Biofuels 0.7%
Wind 2.2% Solar 1.1 %
Solar power
place PV cell in sunlight. You get instant electricity! The stronger
the sunlight, the more electricity you get
Using panels of PV cells, some homes get more electricity
than they need. They sell it to the electricity grid!
&
Work
Sectors of employment
Primary- extract now materials from
ground. For example farming, mining
Secondary - make items to sell. For example
factory, house builder
Tertiary - provides services. For example healthcare,
shop, teachers
Quaternary - researchers, people with high level
education. For example medical researchers
Employment structure in Employment structure in UK
Azerbaijan
0.6
% Industry
Indusrty
19.2%
41.38% Services
42.52% Services
6.93% 80.2%
Why employment pattern change?
1. Technology
In primary new inventions
In secondary - robot arms
In tertiary - put discoveries to practical use/ mobile phones..
In quaternary - computers/ amount of data
2. Globalisation (more connected world)
3. Government (help by offering finance)
