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EnglandEnvironmental ScienceQuick questions
3.2 The physical environment
Quick questions on Biogeochemical cycles: stores, fluxes and the phosphorus and sulfur cycles - AQA A-Level Environmental Science
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
Explain why the phosphorus cycle is described as having no significant gas phase, and state one consequence of this. [3 marks]
What is q2?Show answer
Describe the role of decomposers in a biogeochemical cycle and name two factors that affect their rate of work. [3 marks]
What is q3?Show answer
A reservoir holds 8000 kg of phosphorus with a through-flux of 400 kg per year. Calculate the residence time. [2 marks]
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