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Q:

Who Invented Dynamite Explosive Material?

A) Alfred Bernhard Nobel B) Levi Strauss
C) Percy LeBaron Spencer D) Garrett Augustus Morgan

Answer:   A) Alfred Bernhard Nobel



Explanation:
Subject: Inventions
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Who invented the mouse of a computer?

A) John Backus B) Charles Babbage
C) Douglas Engelbart D) Simon Colton
 
Answer & Explanation Answer: C) Douglas Engelbart

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Q:

Who invented the pendulum clock?

A) Galileo Galilei B) Christiaan Huygens
C) Frederick Jones D) Davidson
 
Answer & Explanation Answer: B) Christiaan Huygens

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Q:

Stainless steel was invented by

A) William Howard Livens B) Joseph Aspdin
C) Harry Brearley D) James Dyson
 
Answer & Explanation Answer: C) Harry Brearley

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Q:

Which of the following branches of mathematics was invented by Newton?

A) Calculus B) Logic
C) Algebra D) Geometry
 
Answer & Explanation Answer: A) Calculus

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Q:

Where was paper invented?

A) China B) India
C) Zambia D) Germany
 
Answer & Explanation Answer: A) China

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Q:

Robert Hooke discovered cells by observing them in a ______.

A) onion peel B) cork slice
C) pond water   D) No option is correct
 
Answer & Explanation Answer: B) cork slice

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Q:

What is the name of the most advance reading machine for visually challenged developed by CSIR?

A) Divya Nayan B) Drishti
C) Darshan D) Divya Paath
 
Answer & Explanation Answer: A) Divya Nayan

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Q:

Who invented Emoji in 1999?

A) Shigetaka Kurita B) Hemang Amin
C) Lee Loong D) Hamilton
 
Answer & Explanation Answer: A) Shigetaka Kurita

Explanation:

Shigetaka Kurita invented Emoji in 1999. There are about 3304 emojis as of March 2020.

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