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20 questions
What percentage of total global water is fresh water?
0.9%
68.7%
2.5%
30.1%
How is water supplied?
Dams and reservoirs
Boreholes and wells
Desalinisation
Water transfer schemes
All are correct
A problem with desalination is that it is...
Water is still salty
Very expensive and needs a lot of energy
Could be used for terrorism
Can be used anywhere
Aquifers are
fire hydrants
boreholes
wells
water-bearing rock underneath the ground
The large body of water behind a dam is a
reservoir
reserve
au revoir
reporter
Why do forests help conserve water?
The roots hold the soil in place, which holds water
The trees prevent rainwater running off into rivers too quickly
All are correct
They keep a local water cycle going, preventing desertification
They soak water up like a sponge, preventing run off
In this pie chart which segments are "municipal"?
Irrigation + Livestock + Aquaculture (39.66%)
Public supply + Self-supplied (13%)
Industrial
Self-supplied + Mining + Thermoelectric power (47.2%)
In Africa, around 82% of water is used for
agriculture
domestic
industry
municipal
Globally, the smallest use of water is
agriculture
towns and cities
aquaculture
industry
A water supply problem associated with increasing industrialisation is
better services
more jobs
increasing levels of development
pollution of water supplies
Absolute drought is
a period of at least 15 consecutive days with less than 0.2mm rainfall
an extended period of dry weather leading to conditions of extreme dryness
a period of at least 29 consecutive days during which the average daily rainfall does not exceed 0.2mm
a big water supply issue
Water scarcity is
when water supply is below 1700m3 per person per year
when a population does not have the necessary monetary means to utilise an adequate source of water
when water supply falls below 1000m3 per person a year, the country faces water scarcity for all or part of the year
when physical access to water is limited
Areas likely to have economic water scarcity are
MEDCs
LEDCs
HICs
NICs
Social development problems associated with water scarcity include
2.5 billion people lack access to proper sanitation (toilets)
Water collection limits time for girls' education
Lack of clean, safe drinking water kills over 4000 children per day
Industry cannot function
Electricity supplies can be threatened by water scarcity through
Closure of power plants
No safe drinking water
A country relying mostly on HEP dams
No sunshine
Why is water scarcity becoming more of a problem?
population increase
climate change
increasing rainfall
increasing pollution
increasing demand from agriculture
Over-extraction is where
industry takes water
too much water is taken from water sources e.g. groundwater
houses take water
water is polluted by industry
In London, how much water is lost through leakages before it is even used?
10%
18%
4%
8%
How much more water does a meat-based diet consume than a vegetarian diet per day?
50 litres
150 litres
2,500 litres
3,000 litres
In California, where is 80% of the demand located?
in Sacremento
in Colorado
in the southern two-thirds
in the northern one-third
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