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10.1 Using the Earth's resources and obtaining potable water

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Question 14
F

Why is it harder to produce potable water from waste water than from ground water?

[1]
A

Waste water contains dissolved salts, which ground water does not contain

B

Waste water is warmer than ground water, so the microbes grow more quickly

C

Waste water contains organic matter and microbes that must both be removed

D

Waste water contains no oxygen, so bacteria cannot break down the waste in it

Markscheme

10.1 Using the Earth's resources and obtaining potable water Questions

  1. GCSE
  2. /Chemistry
  3. /10.1 Using the Earth's resources and obtaining potable water

40 exam-style questions on AQA GCSE Chemistry 10.1 Using the Earth's resources and obtaining potable water, covering 10.1.1 Using the Earth's resources and sustainable development, 10.1.2 Potable water, 10.1.3 Waste water treatment, and 10.1.4 Alternative methods of extracting metals. Each one has a worked solution and a mark scheme showing where the marks go.

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