Philippines is one of the countries with the most extensive coral reef systems in the world. Coral reef is known for its beautiful and colorful natural resources. Why do we need to put our highest value to coral reefs?


a.
Coral reefs can filter salt water which is necessary for young sea animals.


b.
Coral reefs maintain the life of ecosystem


c.
Coral reefs provide rich sources of marine food.


d.
Coral reefs protect the wildlife.​