1.6 Portable Water From Freshwater (GCSE Chemistry)

The following is a GCSE Chemistry test covering '1.6 Portable Water From Freshwater'

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Sterilisation in potable water production usually involves:

Safe drinking water must be free of:

During filtration, gravel and sand remove:

What role does sterilisation play in making water potable?

Desalination uses what main process to remove salts?

Why is saltwater not potable?

Which one is commonly used to sterilise drinking water besides chlorine?

After initial filtration, the next step commonly is:

Reverse osmosis involves:

Which is the most common source of freshwater?

Desalinated seawater is usually:

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