What is the most important reason to continue efforts to preserve coral reefs?
a. coral reefs are a valuable commodity in the aquarium business.
b. coral reefs support a wide variety of organisms.
c. coral reefs are one of the oldest ecosystems.
d. coral reefs are important for marine recreation.

The best answer would be B. Coral reefs should be preserved because it supports a wide variety of organisms. Coral reefs are one of the most economically important and biologically diverse ecosystems. They provide valuable and essential ecosystem services to a lot of marine organisms. They are to be preserved by all means because they are a source of food for some, coastlines are protected from storms, provide habitat, and is used for marine recreation.

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.