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Cambridge IGCSE Combined Science practice

Paper 4 structured question: Air quality and climate

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4

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4

Marks

Topic

Air quality and climate

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Paper 4Theory (Extended)4 marks

The role of human activity in acid rain formation is critical to understand.

Description

Human Contributions to Acid Rain

Human activities, particularly the burning of fossil fuels, release sulfur dioxide and nitrogen oxides into the atmosphere, contributing to acid rain.

  1. a

    Evaluate the effectiveness of using low-sulfur fuels in reducing acid rain.

    Aim for approximately 4 distinct marking points.

    [4]

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Paper 4 structured question: Air quality and climate

Paper 4Theory (Extended)4 marks

Description

Acid Rain Effects

Acid rain can lead to the acidification of lakes and streams, harming aquatic life and disrupting ecosystems.

  1. a

    Discuss the methods to reduce acid rain and their effectiveness.

    Aim for approximately 4 distinct marking points.

    [4]