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Cambridge IGCSE Chemistry practice

Paper 4 structured question: Air quality and climate

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4

Paper

1

Marks

Topic

Air quality and climate

Exam-style question

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Paper 4Theory (Extended)1 marks

Photosynthesis is a crucial process for life on Earth.

Description

Photosynthesis Overview

Photosynthesis converts carbon dioxide and water into glucose and oxygen using sunlight.

  1. a

    State the symbol equation for photosynthesis.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 4 structured question: Air quality and climate

Paper 4Theory (Extended)2 marks

Description

Importance of Photosynthesis

Photosynthesis is vital for the survival of most life forms on Earth.

  1. a

    State two products of photosynthesis.

    Aim for approximately 2 distinct marking points.

    [2]