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Discussion

Deforestation results from removal of trees without sufficient reforestation; however, even with reforestation, significant biodiversity loss may occur. There are many causes, ranging from slow forest degradation to sudden and catastrophic wildfires. 

The passage best supports the statement that: 

 

  • A.A modeling study shows that reforesting the Lower Mississippi Alluvial Valley can significantly reduce runoff from agricultural lands.
  • B.A new study warns that the world’s largest tropical desert, the Sahara, has suffered a catastrophic collapse of its wildlife.
  • C.It's not just the total number of species preserved that matters; it's the number of key species.
  • D.In developing countries, massive deforestation is ongoing and is shaping climate and geography.

Answer: D

Explanation: Answer D is the correct answer.

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