Surface currents are formed mainly by
wind
Current is the
flow of water in a specific direction which transports sediment
Deepwater currents are also called
thermohaline circulation and are caused by density differences
Tidal currents are associated with
rising and falling tides, the greater the tidal range the greater the strength of the currents
Rip currents are
underwater currents that occur near the coastline and transport sediment a few metres out to sea