Answers

  • Brainly User
2015-07-29T21:27:59+05:30
According to me...................................Internet, the WWW[World Wide Web]
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2015-07-29T21:48:25+05:30
Fire, wheels and electricity are a very big invention in history. Fire is very important at times. Wheels are important for transport. Electricity is also very important. First people had to study in dark.
Some studied with lamps. So electricity was an important invention.
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