English, asked by sushma10, 1 year ago

write few lines of blackboard chalk

Answers

Answered by dwijanshparashar

h uth for your reply with remove them on my computer science and I am in the past couple days to do with my computer science teacher 6uw

Answered by Anonymous

Answer:

The chalk is rubbed on the rough blackboard while writing. In the process soft chalk particles get stuck to the irregularities of rough blackboard susfare making the writing visible.

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