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Carbon Cycle
Topic 3: Carbon Cycle
Study this topic
1Introduction2Diagram3Key Facts4Deep Dive5How It Works6Definitions7Misconceptions8Memory Aid9Exam Focus10Summary11Exam Tips
Carbon's Endless Journey
The Carbon Cycle — Visual Overview
Key Facts
Deep Dive: Why CO₂ is Increasing
How It Works: How Carbon Moves Between the Atmosphere, Organisms, and Fossil Fuels
Key Definitions
Common Misconceptions
Memory Aids
Exam Focus
Knowledge Organiser
Exam Tips: The Carbon Cycle
Sample Flashcards
What does the carbon cycle do?
The carbon cycle continuously moves carbon between the atmosphere (as CO₂), living organisms, the soil, and fossil fuels.
Carbon is never created or destroyed — it is recycled.
How does decomposition return carbon to the atmosphere?
Decomposers (bacteria and fungi) break down dead organisms.
They respire, releasing CO₂ back into the atmosphere.
Without decomposers, carbon would be locked in dead material forever.
Sample Questions
Which process removes CO₂ from the atmosphere?
Explain how decomposers return carbon to the atmosphere.
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exam-style questions
20
revision flashcards
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