Detailed explanation and options for the selected question.
What is the significance of coral reefs in marine ecosystems?
A.
They produce oxygen for marine life
B.
They act as breeding grounds for many species
C.
They regulate salinity in oceans
D.
They prevent tsunamis
Explanation:
Coral reefs serve as breeding grounds for diverse species and support marine biodiversity. They do not produce oxygen, regulate salinity, or prevent tsunamis directly.