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Q:

Bacteria was discovered by

A) Antonie van Leeuwenhoek B) Belarus
C) Hugo de Vries D) Robert Brown
 
Answer & Explanation Answer: A) Antonie van Leeuwenhoek

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Q:

Who discovered television?

A) Michael Faraday B) Joseph Henry
C) Abbe Caselli D) John Baird
 
Answer & Explanation Answer: D) John Baird

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Q:

Who discovered Potassium?

A) Humphry Davy B) Alan Turing
C) Bill Gates D) Tim Berners-Lee
 
Answer & Explanation Answer: A) Humphry Davy

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Q:

Who discovered Proton?

A) Ernest Rutherford B) Friedrich Miescher
C) Henri Becquerel D) Henry Cavendish
 
Answer & Explanation Answer: A) Ernest Rutherford

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Q:

Who invented Helicopter?

A) Copernicus B) Sikorsky
C) Cockrell D) Drinker
 
Answer & Explanation Answer: B) Sikorsky

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Q:

Which of the following was invented by Sir Humphry Davy?

A) Safety Pin B) Steam Engine
C) Safety Lamp D) X-Rays
 
Answer & Explanation Answer: C) Safety Lamp

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Q:

Who Invented Dishwasher?

A) Vint Cerf B) David Chaum
C) Georges Claude D) Josephine Cochrane
 
Answer & Explanation Answer: D) Josephine Cochrane

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Q:

Who Invented Post-it note?

A) William Friese-Greene B) Arthur Fry
C) Gordon Gould D) Otto von Guericke
 
Answer & Explanation Answer: B) Arthur Fry

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