Fact 1: Organisms that live in marine biomes must be adapted to the salt in the water.

Fact 2: Most of the water on the planet is salt water in the oceans.

Given the two facts above, answer the question "Organisms that live in marine biomes must be adapted to most of the what on the planet?" with the following options: 
- water
 - liquid
 - Light
 - Energy.
 - growth
 - Winter
 - energy
 - heat


 

 water        