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10.1 Using the Earth's resources and obtaining potable water

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Question 3

A group of walkers collects fresh water from a stream. Harmful microbes may be present in the water.

Which treatment should the walkers use to reduce the harmful microbes to safe levels without adding a chemical to the water?

[1]
A

Chlorine

B

Filtration

C

Ozone

D

Ultraviolet light

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

87 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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