Answer:
<h3>Measurement : The process of compering an unknown quantity with an known quantity system is called measurement.</h3>
<h3>Unit : The fixed quantity of measurement is called unit.</h3>
<h2> Didn't you do this exercise from books or from Google.</h2>
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Answer:
No plastic as it could harm the environment
You can't reserve a seat, you will have to find one yourself
You might not have free lunch and dinner
Explanation:
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An acid is a substance which contains hydrogen ions which can be replaced by a metal or an ammonium ion to form a salt.
A base is a substance which reacts with an acidto form a salt and water only.
A salt is a substance formed when an acid reacts with a base.
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