Question

One reason protecting marine biodiversity is difficult is that ____.​

a. ​much of the damage to the oceans and other bodies of water is not visible to most people

b. ​most species in marine ecosystems are keystone species

c. ​marine ecosystems are much more affected by urban sprawl

d. ​marine ecosystems cannot be restored

e. ​most of the worlds ocean area lies within the legal jurisdiction of one country or another

Answer

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