Which of the following is not a characteristic of warm currents?

The characteristic of warm currents that is not mentioned in the options is that they flow from the polar regions to the equatorial region. Warm currents flow from the equatorial region towards the poles, carrying warm water from the tropics towards higher latitudes. This results in a warming effect on the regions they flow through, affecting both the climate and the oceanic ecosystem. Warm currents are also characterized by high surface temperatures due to the warm water they transport, and they tend to flow along the east coast of continents.