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.
Yes their is a way go to your downloads see if you have some thing or their shall be something that you can type in your computer and find something or you can go to Youtube or google and they can show you a video or some articles.
Answer:
Natural systems are already in place while man made systems were created by humans manipulating things in some way.
Explanation:
man made: human created
natural systems: existed without interference