Question

the global conveyor belt is driven by differences in ____

Explanation:

The global conveyor belt, also known as thermohaline circulation, is driven by differences in temperature (thermo -) and salinity (-haline). These factors affect the density of seawater. Colder and more saline water is denser and sinks, while warmer and less saline water is less dense and rises. This density - driven movement creates a global - scale circulation pattern.

Answer:

temperature and salinity