5. Human activity can destroy coral reefs. Because so many organisms depend on the coral, this can have a negative effect on the ecosystem in shallow ocean waters. Which
of the following solutions will most likely offer the best way for humans to repair the
damage and improve the health of this ecosystem?
a. Introduce non-native species into the shallow ocean that don't depend on coral
b. Design nets to catch the kinds of fish that use coral reefs as a food source
C. Submerge large structures on which new coral reefs can form and grow
d. Use submarines to gather data on the amount of coral reefs lost each year