Thermohaline Currents

We have been exploring Thinglink and using it to create content to which other people can use to learn from.
This Thinglink is about ocean currents.

Three things I have learnt about ocean currents.

1. Ocean currents can be caused by heat (from the sun) and salt water, these are called thermohaline currents.
2. Salt water is more dense than cold freshwater and warm freshwater.
3. If the ocean didn't have any currents nutrients and oxygen wouldn't be spread through the ocean.