Final answer:
A practical effect is an effect created live on the set of a film using physical techniques and props.
Step-by-step explanation:
An effect created live on the set of a film is called a practical effect. Practical effects are physical effects that are created and captured in real-time on the set using props, makeup, and other practical techniques. They can include things like explosions, stunts, physical set pieces, and prosthetics. These effects are often used to enhance the realism of a scene and can be more convincing than computer-generated special effects.
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