What is the significance of the coral reefs of the Southern Line Islands?
a. they represent the southernmost tropical reefs
b. they are like coral reefs before the impact of humans
c. they are highly impacted by humans
d. they have few fish and no top predators
ANS: B
Dr. Enric Sala shared his expedition experience to the Southern Line Islands which are a pristine area
of coral reefs in the South Pacific. He describes that humans are the most important factor in
determining the health of coral reefs and that top predators and healthy corals provide resilience. In
Insight from A National Geographic Explorer
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