What is a pencil? What are the kinds of pencils available in the market?
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Pencils are made by lead , there are many types of pencils available in market.
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Graphite pencils (traditionally known as "lead pencils") produce grey or black marks that are easily erased, but otherwise resistant to moisture, most chemicals, ultraviolet radiation and natural aging. Other types of pencil cores, such as those of charcoal, are mainly used for drawing and sketching.
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