Is blackboard chalk harmful to the human body?
Question:
Answers:
Only if somebody hit you with that, then it become a wepon.=o)
Other Answers:
no its not harmful even if eaten
Source(s):
nurse
We eat it every day in some way.for instance it is compressed dust, Remember the white "dust" on the chewing gum that came with ball cards? that was lime dust from the quarry to keep it from sticking to the wrapper.
it depends up on persons.chalk powder causes countinous cought and sneezing for some persons.
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