The cycling of matter and energy in the biosphere

In this topic

• The central law of the biosphere
• The energy flow and thermodynamics
• The great (geological) and the small (biological) circulation
• How closed the cycle is, and what humans do to it

Key terms

• Cycling of matter
• Energy flow
• Biogeochemical cycle
• Great (geological) circulation
• Small (biological) circulation
• Producers
• Consumers
• Decomposers
• Mineralisation
• The second law of thermodynamics
• Degree of closure of a cycle
• Circular economy

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