Biology 5090 · O Level · Effects of humans on ecosystems

Effects of humans on ecosystems — practice question

Hardwood trees in tropical rainforests are often cut down for timber. After this, one fast-growing crop, such as palm oil, is cultivated on that same area of land. What effect will clearing the rainforest have on the environment?

  • Adecreased run off into rivers and flooding
  • Bimproved soil structure and soil nutrients
  • Creduced soil erosion by wind and rain
  • Dreduced biodiversity of the area

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