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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Water

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3

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1

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Water

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Paper 3Theory (Core)1 marks

Water quality assessment

Description

Harmful Substances in Water

Water bodies can be contaminated with various harmful substances that affect aquatic life.

  1. a

    State one harmful substance found in water that can affect aquatic ecosystems.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Water

Paper 3Theory (Core)2 marks

Description

Pollutants in Water

Various pollutants can enter water bodies, affecting their quality and the health of aquatic life.

  1. a

    State two examples of pollutants that can harm aquatic ecosystems.

    Aim for approximately 2 distinct marking points.

    [2]