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<p>An average tree <strong>removes 4-5 kg of pollution</strong> from the air each year, and provides enough oxygen for four people.</p>

An average tree removes 4-5 kg of pollution from the air each year, and provides enough oxygen for four people.

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2009: Biodiversity

2009: Biodiversity

Grade 9 to Grade 12

Biodiversity includes all life on earth and the natural patterns it forms. It is biodiversity that drives many natural processes and functions that are required for the survival of humans. The study guide introduces you to the value of biodiversity, their threats and what we can do.

  • Study Guides
  • Geography
  • Science