Which of the following was invented by Sir Humphry Davy?
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Who discovered the colour photography?
Edward Jenner discovered vaccine for which of the following disease?
Who discovered Penicillin?
Who discovered Fullerene (an allotrope of carbon)?
Who discovered X-Ray?
Who Invented Neon Lamp?
Which country on 23 October 2017 signed the Paris agreement on climate change, leaving the United States and Syria as the only two countries holding outto sign this global climate pact?
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