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7.3 Biodiversity and the effect of human interaction on ecosystems

7.3 Biodiversity and the effect of human interaction on ecosystems

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Question 17
H

Gardeners are encouraged to buy peat-free compost.

Which statement gives the best reason for this in terms of both biodiversity and climate?

[1]
A

Peat bog habitats are conserved, and carbon stored in the peat is not released as carbon dioxide

B

Peat bog habitats are conserved, and peat-free compost absorbs more carbon dioxide from the air

C

Peat-free compost contains more nutrients, and bogs release less methane once the peat is removed

D

Peat-free compost contains fewer microorganisms, so less carbon dioxide is released in gardens

Markscheme

7.3 Biodiversity and the effect of human interaction on ecosystems Questions

  1. GCSE
  2. /Biology
  3. /7.3 Biodiversity and the effect of human interaction on ecosystems

49 exam-style questions on AQA GCSE Biology 7.3 Biodiversity and the effect of human interaction on ecosystems, covering 7.3.1 Biodiversity, 7.3.2 Waste management, 7.3.3 Land use, 7.3.4 Deforestation, 7.3.5 Global warming, and 7.3.6 Maintaining biodiversity. Each one has a worked solution and a mark scheme showing where the marks go.

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