Cambridge IGCSE Chemistry practice

Paper 3 structured question: Air quality and climate

Try the question first, then check the answer and practise the same topic again.

At a glance

Paper

Marks

Topic

Air quality and climate

Exam-style question

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Paper 3Theory (Core)1 marks

Photosynthesis is a vital process for life on Earth.

Description

Photosynthesis occurs in plants, where they convert carbon dioxide and water into glucose and oxygen using sunlight.

a
State the word equation for photosynthesis.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)2 marks

Description

Photosynthesis not only provides food for plants but also releases oxygen, which is crucial for the survival of most living organisms.

a
State two products of photosynthesis.
Your answer
Aim for approximately 2 distinct marking points.
[2]