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14 questions
What are finite resources?
Resources that will not run out
Resources that will run out
Resources that are used as fuels
Resources that are sustainable
What is sustainable development?
Development that meets the needs of the current generations without compromising the ability of future generations to meet their own needs
When resources are used in high demand but can be developed to meet the supply in a short period of time.
What is potable water?
Water found in a pot
Water that is safe to drink
Water from an underground source
Water that is safe to wash in
In the UK how is potable water produced?
Passing fresh water through filter beds and sterilising
Removal of salt from sea water
Reverse osmosis or distillation
Evaporated from a mixture of impure water
An example of a natural product
cotton
polyester
nylon
acrylic
An example of a synthetic product
cotton
wood
silk
polythene
How is water sterilised?
Passing fresh water through filter beds and sterilising
Removal of salt from sea water
Reverse osmosis or distillation
Using chlorine, ozone or ultraviolet light
What is desalination?
Passing fresh water through filter beds and sterilising
Removal of salt from sea water
Reverse osmosis or distillation
Using chlorine, ozone or ultraviolet light
In what ways can desalination be carried out?
Passing fresh water through filter beds and sterilising
Removal of salt from sea water
Reverse osmosis or distillation
Using chlorine, ozone or ultraviolet light
What is the main disadvantage of desalination?
It requires a large amount of energy
It is carried out at a high pressure
A low temperature is used
It has a low atom economy
In what kinds of locations is desalination carried out?
Ones where there is limited supply of fresh water
Where there is plenty of salt water
In dry, arid regions
In cold, icy regions
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