Which of the following processes is used to separate lighter earthy particles from the heavier ore particles using water?
Smelting
Gravity separation
Magnetic separation
Leaching
The gravity separation method is based on differences in the gravity of ore and gangue articles.
In the gravity separation method, an upward? stream of running water is used to wash the powdered ore where the lighter gangue particles are washed away and heavier ores are left behind.