The correct answer to the question is : Air resistance.
EXPLANATION:
Before coming into any conclusion, first we have to understand the terminal velocity.
An object is said to be moving with terminal velocity if the net force acting on the object is zero i.e the body is non accelerating.
As per the question, the object is falling under gravity. The force of gravity acts in vertical downward direction.
Except gravity, the object is also under air resistance. It is the force which opposes the motion of the object, and acts in vertical upward direction.
If the air resistance becomes equal to force of gravity, then the net force acting on the object is zero . It is so because two forces act in opposite direction.
In case of liquids, the resistance force is called as viscosity.
Hence, the correct answer to the question is air resistance.
The Answer to this question would Be A
Hope this helps
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Is potential energy that results from conservative Coulomb forces and is associated with the configuration of a particular set of point charges within a defined system
Nuclear fusion in the core tries to blow the star apart. Gravity holds it together. Whoever designed that system really knew what he was doing. I'm kinda grateful to him.