a person could float most easily in ocean water that has which characteristic?\nwarm\nfresh\nlow mass\nlow…

Brief Explanation:

Buoyancy is related to density. Salt - water (ocean water) with higher density makes floating easier. Warm ocean water has lower density than cold water in general, but compared to other options, warm water is correct as it is less dense than cold water and thus provides more buoyancy for floating. Fresh water has lower density than ocean water and is not correct. Low mass is not a relevant characteristic for floating easily. Low freezing - point is also not related to ease of floating.

Answer:

warm