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Learning objective

Explain the reasons that lead to organisms becoming endangered or extinct, such as climate change, destruction of habitats, hunting, excessive harvesting, pollution, and the introduction of non-native species.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE Combined ScienceHuman influences on ecosystemsCore content

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Quick explanation

Explain the reasons that lead to organisms becoming endangered or extinct, such as climate change, destruction of habitats, hunting, excessive harvesting, pollution, and the introduction of non-native species

  • This point belongs to Conservation, especially Conservation outcomes.
  • You need to be able to explain the reasons that lead to organisms becoming endangered or extinct, such as climate change, destruction of habitats, hunting, excessive harvesting, pollution, and the introduction of non-native species.
  • The key ideas to know are Outline, Explain, and Describe.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

OutlineExplainDescribe

Why it matters

This objective helps connect Conservation outcomes to exam-style questions, flashcards, and revision notes for Conservation.

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Practice Questions7 linked questions

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Paper 3 structured question: Conservation

Paper 3Theory (Core)3 marks

Description

Factors Leading to Endangerment

Various factors contribute to the endangerment of species, including climate change, habitat destruction, hunting, pollution, and the introduction of non-native species.

  1. a

    Discuss the impact of habitat destruction on biodiversity.

    Aim for approximately 3 distinct marking points.

    [3]
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