and even climate change in pristine wilderness areas.
106- Among the reasons of the emergence of infectious diseases, one not mentioned in
the passage is ............ .
A) the distribution of animals all over the world
B) passing of micro-organisms from the tamed animals to the wild ones
C) simplicity of the curing methods of contagious illnesses
D) the expansion of the human populations to the wilderness
E) changing of the climates in the habitats of the wild animals
107- The extinction of amphibians in the rain forests of Central America and
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