The Florida Everglades have declined in size and suffered from pollution due to overpopulation. When runoff occurs, a dense growth of algae forms along the water surface. What will be the impact of these algae growths?

A. Low quantities of carbon cause organisms to die from lack of organic material.
B. Low quantities of oxygen caused by algal blooms cause organisms to die.
C. High quantities of carbon cause organisms to die from lack of organic material.
D. High quantities of oxygen caused by algal blooms cause organisms to die.