Fact 1: Freshwater biomes have water that contains little or no salt.

Fact 2: Estuaries display characteristics of both marine and freshwater biomes.

Given the two facts above, answer the question "what do freshwater environments have little of?" with the following options: 
- nektar
 - sand
 - nitrogen
 - fungi
 - salt
 - Acids
 - Carbon
 - water


 

     salt    