Because the brain sends messages for your muscles to move your arm through the nervous system.
Answer:
looking it up on google of asking question's about it to the person who is in charge of the activity.
Explanation:
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Answer:
Explanation:
Nitric Acid reacts with egg shell to form calcium nitrate, carbon dioxide and water. Egg shell + Nitric Acid --------> Calcium Nitrate + Carbon dioxide + Water