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Cambridge IGCSE Biology practice

Paper 3 structured question: Pollution

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Pollution

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Paper 3Theory (Core)3 marks

Non-biodegradable plastics affect land ecosystems by persisting in the environment and harming soil and animals.

Description

Effects of Plastics on Land

Plastics can block air and water flow in soil and release toxic chemicals that harm soil organisms and animals.

  1. a

    Describe two impacts of non-biodegradable plastics on land ecosystems.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Pollution

Paper 3Theory (Core)2 marks

Description

Plastic Pollution

Non-biodegradable plastics do not break down naturally and can accumulate in the environment, causing harm to animals and habitats in water and on land.

  1. a

    Describe one way non-biodegradable plastics can harm aquatic animals.

    Aim for approximately 2 distinct marking points.

    [2]