Potable Water (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is potable water?
What is potable water?
Water safe to drink
What measure is used in the UK during summer when water reserves run low?
What measure is used in the UK during summer when water reserves run low?
Hosepipe bans
Why is fresh water from rain suitable for treatment into potable water?
Why is fresh water from rain suitable for treatment into potable water?
It has low levels of dissolved substances
What is the purpose of filtration in potable water production?
What is the purpose of filtration in potable water production?
To remove insoluble particles
Which of these is NOT a method used to sterilise water in the UK?
Which of these is NOT a method used to sterilise water in the UK?
Boiling
What is the most common method of desalination?
What is the most common method of desalination?
Distillation
Why is desalination less viable in many parts of the world?
Why is desalination less viable in many parts of the world?
It is energy-intensive and costly
Where do desalination plants need to be located?
Where do desalination plants need to be located?
Near the sea
What is the main purpose of adding fluoride to water supplies?
What is the main purpose of adding fluoride to water supplies?
To prevent tooth decay
When and where was the first water fluoridation scheme introduced?
When and where was the first water fluoridation scheme introduced?
US in 1945
Who decides whether to add fluoride to water supplies in the UK?
Who decides whether to add fluoride to water supplies in the UK?
Individual local authorities
What health problem can fluoride cause in high concentrations?
What health problem can fluoride cause in high concentrations?
Fluorosis (tooth discolouration/decay)