Answer:
D is the answer to your question in my opinion
in digital signals, codes are used while in analogue signals do not use signals.
<h3>What are signals?</h3>
Signals are defined as the instructions which are transferred to another source in other to deliver a message.
There are two types of signals which include the digital and analogue signals.
The digital signals uses codes which is a secret way of sending messages while analogue doesn't use codes.
Learn more about codes here:
brainly.com/question/22654163
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Answer:
that is why co2 is in the power of 2ik
If the half-life of a sample of a radioactive substance is 30 seconds, how much would be left after 60 seconds? <span>
A. one-fourth</span>
Answer:
chemical change
Explanation:
chemical change requires energy in the form of heat or electricity.
