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Learning objective

Students should be able to describe and explain the reasons behind deforestation and its effects. Reasons include timber extraction and logging, subsistence and commercial agriculture, the construction of roads and settlements, and the extraction of rocks and minerals. Effects include the loss of habitats, soil erosion and desertification, climate change, and the reduction of biodiversity and genetic diversity.

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Cambridge IGCSE Environmental ManagementNatural ecosystems and human activities

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Quick explanation

Students should be able to describe and explain the reasons behind deforestation and its effects. Reasons include timber extraction and logging, subsistence and commercial agriculture, the construction of roads and settlements, and the extraction of rocks and minerals. Effects include the loss of habitats, soil erosion and desertification, climate change, and the reduction of biodiversity and genetic diversity

  • This point belongs to Deforestation, especially Deforestation outcomes.
  • You need to be able to students should be able to describe and explain the reasons behind deforestation and its effects. Reasons include timber extraction and logging, subsistence and commercial agriculture, the construction of roads and settlements, and the extraction of rocks and minerals. Effects include the loss of habitats, soil erosion and desertification, climate change, and the reduction of biodiversity and genetic diversity.
  • The key ideas to know are Describe, Explain, and Identify.
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Key concepts

DescribeExplainIdentifyDiscuss

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Paper 1 structured question: Deforestation

Paper 1Theory6 marks

Description

Causes and Effects of Deforestation

Deforestation occurs due to timber extraction and logging, subsistence and commercial agriculture, construction of roads and settlements, and extraction of rocks and minerals. The effects include loss of habitats, soil erosion and desertification, climate change, and reduction of biodiversity and genetic diversity.

  1. a

    Describe two reasons why deforestation occurs.

    Aim for approximately 2 distinct marking points.

    [2]
  2. b

    Explain two environmental effects of deforestation.

    Aim for approximately 4 distinct marking points.

    [4]
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