The key role of carbon and water stores and cycles in supporting life on Earth with reference to climate
Carbon and water move continuously between stores — such as the oceans, atmosphere, and living things. These movements regulate temperature and rainfall, making Earth habitable for life.
Real World
The Amazon rainforest acts as both a massive carbon store (holding around 150–200 billion tonnes of carbon in biomass and soil) and a driver of regional rainfall through transpiration, releasing roughly 20 billion tonnes of water vapour daily into the atmosphere.
Exam Focus
Name all five carbon stores (atmosphere, biosphere, hydrosphere, cryosphere, lithosphere) — missing one costs easy marks.
Essay Framework
Use PEEL to structure every paragraph. Tap each step for guidance and an example.
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