Water Quality

Question 1

What three steps must be taken to make water safe to drink?

Answer 1

1) Choose a good source
2) Pass through a filter to remove solids
3) Add chlorine to kill microbes

Question 2

What do water filters do?

Answer 2

Remove dissolved substances using carbon, silver and ion exchange resins

Question 3

How can you create pure water and what is the problem with this?

Answer 3

By distillation but it’s expensive

Question 4

What are the pros and cons of adding fluorine to drinking water?

Answer 4

Pros - Good for teeth
Cons - No choice
- Can be linked to cancers and bone problems

Question 5

What are the pros and cons of adding chlorine to drinking water?

Answer 5

Pros - Removes microbes

Cons - Can produce toxic by-products that could cause cancer

Question 6

What four things can you do to drinking water to improve it?

Answer 6

1) Water filters
2) Distillation
3) Add chlorine
4) Add fluorine

Question 7

What must drinking water be free from?

Answer 7

Microbes and poisonous salts