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Chapter overview
Study Air and Atmosphere through notes, flashcards, revision, MCQs, and long-answer practice.
Practice ready
5086 MCQs and 3554 written prompts are ready for focused chapter work.
Topics
3
Recall
9
Cards
18
Topic 1
Air is present all around us.
Topic 2
Nitrogen is the largest part of air.
Topic 3
Smoke and vehicle exhaust pollute air.
Chapter pack
Topic list
Topic 1
Air is a mixture of gases around us; it occupies space and supports life and burning.
Topic 2
Air is mainly nitrogen and oxygen, with small amounts of carbon dioxide, water vapour, and other gases.
Topic 3
Air pollution occurs when harmful gases, smoke, dust, or particles enter air in unsafe amounts.
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