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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Water

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1

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Water

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Paper 3Theory (Core)1 marks

The effects of water quality on health.

Description

Water Quality and Health

Clean water is vital for human health. It contains beneficial substances like dissolved oxygen and essential minerals, but pollution can introduce harmful substances.

  1. a

    State one way in which clean water supports human health.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Water

Paper 3Theory (Core)1 marks

Description

Dissolved Substances in Water

Water contains various dissolved substances that can be beneficial or harmful to aquatic life. Dissolved oxygen is essential for fish, while certain minerals from metal compounds are necessary for health.

  1. a

    State one beneficial substance found in water and its importance.

    Aim for approximately 1 distinct marking point.

    [1]