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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Question 1

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What is the first stage in making freshwater potable?

Freshwater becomes potable by using filtration to remove:

What role does sterilisation play in making water potable?

Which process is employed by countries having coastlines but limited freshwater sources?

Freshwater from rivers and groundwater often needs treatment because:

Reverse osmosis involves:

Sterilisation in potable water production usually involves:

What causes rainwater to be slightly acidic?

What is potable water?

Rainwater normally contains:

What is the main disadvantage of desalination processes?

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