Question

Coral bleaching is most likely to occur because of which of the following?

Answer 1

A-Pouring bleach onto a coral reef causes it to turn white.
B-Pollution poured into a coral reef ecosystem causes the coral to turn white and eventually die.
C-Tropical fish often give off specific enzymes that affect coral reefs and turn them white.
D-When water temperature becomes too hot or too cold, coral will expel its symbiotic algae and turn white.