The receiver of a signal must understand the code or language being used to avoid confusion and losses.
<h3>What is a Signal?</h3>
This is usually in the form of a sound or body movement and is involved in conveying messages to people.
The receiver must understand the code or language in order to prevent confusion or loss of lives and properties.
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Your answer would be motion because u need force to stop motion or anything at that matter
Answer:
The three types of thermal expansions are Linear expansion , Superficial expansion and Cubical expansion