Question

what is the salinity of a estuary biome? less than 1 ppt not salty ppt between 1 - 35 ppt more than 35 ppt

Explanation:

Estuaries are transitional zones between freshwater (rivers, etc., which have low salinity, often less than 1 ppt in pure form) and saltwater (oceans, which have an average salinity of around 35 ppt). The mixing of these two water sources in estuaries leads to a salinity that is intermediate. So, the salinity of an estuary biome is between the salinity of freshwater and ocean - water.

Answer:

C. Between 1 - 35 ppt