Answer:
using more than one medium of expression or communication
Answer: File
Explanation:
In PowerPoint _file_ management is extremely important and you must keep track of what links, files, and programs are placed in which folders.
File Management is extremely important because it is necessary for effective system administration.
A good file management system in powerpoint makes compactness, data retrieval and editing achieveable.
Answer:
No
It just let us see moving but actually they doesn't move
Joseph Henry in about 1835. He is American and he made something called a relay.
