What kinds of factors could hinder the forward progress of a message in a bottle in an ocean current? What factors could aid the movement?
Factors to hinder a forward progress of a message in a bottle in an ocean current include a tsunami, hurricanes, water waves, and the animals in the ocean. The factors that would aid the movement are the ocean currents, and the wind.
Currents, tsunamis, hurricanes, animals, or storms....That's what I came up with.