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Sorry ma'am but I don't know.
Vincent do you know the importance of periodic table?
Why you doesn't know about that? You should understand the importance of that tomorrow.
What should I do? I need to understand the importance of it..
The periodic table is so important to our existence today because the world we live in is made up of chemicals and chemical reactions.
Very good answer.
I know it! I must ask for a help to my friends.
Thank you ma'am but I must thank my friend for a help.
You see it's very easy to identify it's importance.
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