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Best inventions of past hundred years
Antibiotics
To heal sick people
Mobile phone
To contact whoever you want
and whenever.
Internet
We can communicate with the whole world
Ink pen
We can write very well, it is pratical
Plastic
We can do things more easily
BAR CODE
IT REDUCES THE TIMES IT TAKES TO PAY FOR
THINGS
Micro chip
Small and contains a lot of
information
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