The first computer mouse was invented by: MCQ with Answer and Explanation

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The first computer mouse was invented by:

A. John von Neumann

B. Douglas Engelbart

C. Charles Babbage

D. Alan Turing

Answer: Option B

Solution (By JKExamLibrary)

Douglas Engelbart invented the computer mouse in the 1960s.

This question belongs to: Static General Knowledge Science and Technology

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Question #1 Report Error

Who proposed the theory of evolution by natural selection?

A. Jean-Baptiste Lamarck

B. Charles Darwin

C. Gregor Mendel

D. Alfred Russel Wallace

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Correct Answer: Option B

Explanation:
Charles Darwin published 'On the Origin of Species' detailing natural selection.

This question belongs to: Static General Knowledge Science and Technology

Question #2 Report Error

Which of the following is the hardest natural substance on Earth?

A. Gold

B. Iron

C. Diamond

D. Platinum

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Correct Answer: Option C

Explanation:
Diamond is an allotrope of carbon and is the hardest known natural mineral.

This question belongs to: Static General Knowledge Science and Technology

Question #3 Report Error

What is the primary goal of Gaganyaan?

A. Study Sun

B. Send humans to space

C. Reach Mars

D. Land on Moon

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Correct Answer: Option B

Explanation:
It is India's human spaceflight programme.

This question belongs to: Static General Knowledge Science and Technology

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