Biology 5090 · O Level · Effects of humans on ecosystems

Effects of humans on ecosystems — practice question

Which row identifies factors that could lead to famine?

  • Aclimate change causing drought: yes; destruction of tropical forest: yes; flooding: yes; increased human population: no; increased use of fertilisers: no
  • Bclimate change causing drought: yes; destruction of tropical forest: no; flooding: yes; increased human population: yes; increased use of fertilisers: no
  • Cclimate change causing drought: no; destruction of tropical forest: yes; flooding: no; increased human population: yes; increased use of fertilisers: yes
  • Dclimate change causing drought: yes; destruction of tropical forest: no; flooding: no; increased human population: yes; increased use of fertilisers: yes

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