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ZIMSEC A-Level Geography

7.3Biogeochemical cycles; Gerschmel diagrams

Biogeochemical cycles; Gerschmel diagrams in ZIMSEC A-Level Geography: what the syllabus expects you to know, the learning objectives and how to practise.
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Learning objectives

What the syllabus expects you to be able to do.

  1. 7.3.1Illustrate and describe the carbon, nitrogen and oxygen cycles.
  2. 7.3.2Draw a Gersmehl diagram, identify its compartments and apply nutrient cycling to tropical biomes.

Lessons

  • Nutrient cycles and Gersmehl diagrams

    40 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Biogeochemical cycles; Gerschmel diagrams: sample question

1 mark

In a tropical rainforest most of the nutrients are stored in the soil.

Is the statement true or false?

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