Question

Ordinary writing pencil consists of an interior strip of
(a) graphite
(b) lead
(c) Tin
(d) Diamond​

Answer 1

Answer:

graphite is the right answer

Explanation:

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Answer 2

Answer:

Ordinary writing pencil consists of an interior strip of graphite.

Explanation:

• Actually, the pencil is made of graphite.
• The ancient Romans utilized a stylus, which is one of the first types of writing implements.
• This lead-based stylus pen was the forerunner to the ones we use today with our smartphones and other gadgets.
• And regrettably, that is the reason the pencil material is known as lead.
• The process of making pencils then changed from sawing graphite blocks into sticks to inserting graphite rods into wooden sleeves.
• Much later, in 1790, it was discovered that mixing graphite with clay and kiln-firing it may change the hardness of graphite pencil lead.
• And there, my friends, is the history of the number 2 lead pencil.

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