The net upward force that a liquid exerts on a submerged object is called buoyant force.

Here's a breakdown:

* Buoyant force is a result of the pressure difference between the top and bottom of a submerged object.

* The pressure at the bottom of the object is higher than the pressure at the top because the water column above the bottom is deeper.

* This pressure difference creates an upward force, pushing the object upwards.

* The buoyant force is equal to the weight of the fluid displaced by the object. This is known as Archimedes' principle.

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