Answer:
They forgot to record their information first.
Explanation:
You should always record your information so then you have it for further reference and you can always use it if you need to retry something or are having somebody else do it and they need to make sure that they got the right answer.
Answer:
Optical telescopes are made up out of a series of mirrors or lenses in order to gather more light with a higher resolution and magnification than the naked eye
Explanation:
<span>The first electrochemical cell was invented by Alessandro Volta.
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Answer is C glucose and oxygen make all the essential components for cell reproduction and restoration