It is <u>true </u>that one of the principles of communication is that it is repeatable. You can communicate with other people as much as you want to, you can even talk about the same thing over and over again. This means that this type of communication can be repeated, which makes this sentence true.
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MCB stands for miniature circuit breaker
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hope this helps
Answer:
there's no statement above so I cant really answer the question
The atmosphere had no oxygen it thereby created an environment where only anaerobic organisms could exist. They couldn't make there own food due to lake of oxygen in the atmosphere