Answer:
A communication barrier is anything that prevents us from receiving and understanding the messages others use to convey their information, ideas and thoughts.They can interfere with or block the message you are trying to send.
Pinhole cameras were one of the most sophisticated devices of the period, it made tasks much easier it basically worked exactly like the human eye and is something just like tracing.
Answer:
webidence
Explanation:
Webidence is a web source or web sources displayed as evidence during a speech, found by using real-time web access or webpage capture software.
This is an online material which serve as a form of evidence to support ones speech or presentation.
It can be gathered or gotten by making use of capture software, real time web access or webpage.
The main idea behind it is to authenticate your presentation.
