biology 3 chapter 4.1

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The effects of the population explosion 

  • The human population is increasing rapidly
  • Humans are using more resources and producing more waste and pollution
  • Humans are responsible for polluting both land and waterways 

Air pollution

  • Sulphur dioxide dissolved in rain makes it more acidic
  • Acid rain can affect organisms both directly and indirectly

Deforestation and peat destruction

  • Forests are being cut don to clear the land for farming 
  • Deforestation leads to a reduction in biodiversity and an increase


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