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

Air pollution is a significant environmental issue.

Description

Various air pollutants originate from different sources, including human activities and natural processes.

a
State the source of carbon monoxide in the atmosphere.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)2 marks

Description

Air pollutants include gases and particulates that can harm health and the environment.

a
State two sources of nitrogen oxides.
Your answer
Aim for approximately 2 distinct marking points.
[2]