Paper I · 7 Sustainable Development & Environment · 7.1.2 Biogeochemical cycles

7.1.2.4 Phosphorus and sulphur cycles

Phosphorus and sulphur follow sedimentary cycles with their main stores in rocks; phosphorus has no significant gas phase, while sulphur passes through the air as sulphur dioxide and hydrogen sulphide.

  • APPSC Paper I · Paper I
  • Standard level
  • 8 min read
  • Full course

Key terms

  • phosphorus cycle
  • phosphate rock
  • weathering
  • mycorrhiza
  • Glomus
  • guano
  • eutrophication
  • sulphur cycle
  • sulphate
  • hydrogen sulphide
  • sulphur bacteria
  • dimethyl sulphide
  • acid rain
  • flue gas desulphurisation

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Mains writingMains writing
  5. Common trapsFoundation
  6. Quick revisionFoundation

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