According to some botanists, invasive plants are the second most serious threat, after
habitat loss, to native species of plants and animals and to the maintenance of
biologically diverse ecosystems.
A. threat, after habitat loss, to native species of plants and animals and to the
maintenance of biologically diverse ecosystems
B. threat, after habitat loss, to native species of plants and animals and for
maintaining biologically diverse ecosystems
C. threat, after losing their habitat, to native species of plants and animals and
also to maintenance of biologically diverse ecosystems
D. threat to native species of plants and animals and for maintaining biologically
diverse ecosystems, after habitat loss
E. threat to native species of plants and animals as well as to maintaining
biologically diverse ecosystems, after losing their habitat
B and D:
the second most serious threat...FOR maintaining biologically diverse ecosystems
Here,
threat FOR is unidiomatic.
The correct idiom is
X is a threat TO Y.
Eliminate B and D.
C:
invasive plants are the second most serious threat, after losing their habitat
Here,
their seems to refer to
invasive plants, implying that INVASIVE PLANTS are losing their habitat.
The intended meaning is that NATIVE SPECIES lose their habitat.
Eliminate C.
E:
maintaining biologically diverse ecosystems, after losing their habitat
Here,
their seems to refer
diverse ecosystems, implying that DIVERSE ECOSYSTEMS are losing their habitat.
The intended meaning is that NATIVE SPECIES lose their habitat.
Eliminate E.
The correct answer is
A.
Last edited by
GMATGuruNY on Thu Aug 16, 2018 6:14 am, edited 1 time in total.
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