Fact 1: Coral reefs provide food and shelter to many ocean organisms.

Fact 2: Salinity is vital for animals that live in the ocean.

Given the two facts above, answer the question "Coral reefs provide food and shelter to animals that require what?" with the following options: 
- Light
 - beaches
 - survive
 - salinity
 - land
 - sand
 - Energy.
 - Energy


 

    salinity     