Here's why:
* Buoyant Force: This is the upward force exerted by a fluid (like water or air) on an object submerged in it.
* Force of Gravity: This is the downward force that pulls all objects towards the center of the Earth.
When the buoyant force is greater than the force of gravity:
* The upward push of the fluid is stronger than the downward pull of gravity.
* This results in a net upward force, causing the object to rise and float.
Example: A boat floats because the buoyant force of the water pushing upwards on the boat is greater than the force of gravity pulling the boat downwards.
