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ZIMSEC O-Level Agriculture

5.2.1Soil formation

Soil formation in ZIMSEC O-Level Agriculture: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic19 practice questions1 lesson
Practise this topicAll Agriculture topics

Learning objectives

What the syllabus expects you to be able to do.

  1. 5.2.1.1Form 1 and Form 3: discuss the forms of weathering (physical, chemical and biological) and how soil forms from rock.
  2. 5.2.1.2Form 2: describe the soil profile, the appearance and composition of each horizon and its significance to crop growth (taught under 'Soil texture, structure and profile').

Lessons

  • Soil formation and the soil profile

    30 min

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Sample question

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

Soil formation: sample question

1 mark

A granite dome heats strongly in the sun and cools quickly at night. Over many years thin, curved sheets of rock peel off its surface. Which type of weathering is this?

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