Question

what is the use of sound and video effects in a presentation​

Answer 1

Explanation:

Animation applied to text or objects in your presentation gives them sound or visual effects, including movement. You can use animation to focus on important points, to control the flow of information, and to increase viewer interest in your presentations

Answer 2

Answer:

it gives attraction to the viewers

Explanation:

as different frequencies enters to the ears of a person it gives relief to that person