GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An example of a product of technological evolution is:
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mechanical pencil
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wooden pencil
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cave paintings
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ink and quill
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Explanation:
Detailed explanation-1: -1822: Invention The actual mechanical pencil was invented and patented in England by Sampson Mordan and Gabriel Riddle in 1822. What they had was more or less a refillable lead holder rather than a sophisticated mechanical pencil.
Detailed explanation-2: -A pencil is primarily made out of wood and graphite. The graphite is ground down and mixed with powdered clay and water to make a thick paste. This paste is then fired in a kiln. The result is a strong lead core that’s difficult to break and extremely smooth for writing on paper.
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