10 Marine - Ocean Currents & Global Conveyor

Warm water is _________ dense than cool water.

Warm water moves away from the ___________.

• poles

• land

• equator

• gyre

Cool water moves away from the ________.

• poles

• gyre

• equator

• currents

Thermohalines currents are dependant on __________ and ________.

• temperature

• density

• salinity

• viscosity

As depth in the ocean increases the salt concentration (salinity) ________.

• increases

• decreases

• stays the same

• it depends on how its feeling

Upwelling is the movement of _________ upwards, due to the warmer waters rising.

Why is the upwelling of nutrients from the seabed important?

• It completes the circle of life.

• It provides food to the living organisms in the upper zones of ocean.

• It helps stabilise the density levels in the ocean.

What name do we give to the global movement of water?

In your opinion, what could be one or two possible side effects of a disruption of the global conveyor belt?