Answer:
Not Practical and not Possible
Explanation:
Signals are used whenever voice communication is not practical and not possible.
Speech signals are transmitted using telephone channels. The voice signals are transferred using the telephone set to the local telephone exchange and then to the receiving party.
In electronics and telecommunications, the signal is described as any electromagnetic wave or current that transfers information.
World(specifically Earth).
you wouldn't expect your local newspaper to start reporting on what was happening on the sun, right?
The main difference is that all non-fiction books have a table of contents, but not all fiction books do.
<h3>What is a table of content?</h3>
A table of content means a page or section at the front of your book that lists the chapters of the book and their corresponding page numbers.
The difference between a table of contents in a fiction book and in a nonfiction book is that all non-fiction books have a table of contents, but not all fiction books do.
Learn more about fiction on:
brainly.com/question/19599489