Colonisation of tropical Pacific islands by humans has resulted in the extinction of more than . . . . . . species of native birds.
- A$2000$
- B$7000$
- C$784$
- D$15000$
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Provide information on the history of species extinction and state its effects.
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$II$. Decrease in plant production
$III$. Increased variability in ecosystem processes like water use,pest/disease cycle,and plant productivity
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Choose the correct option.
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