Explain the symbols shown in the figure which disasters may occur
if those symbols are ignored.
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a) when skin or any delicate pat of the body come in a contact with irritant substance, it can cause harmful reaction.especially eyes,nasal mucosa and skin are affected by contact with corrosive substance.
b) Toxic: to taste a toxic substance or even to smell it it cam lead to death. the packing of this substances are therefore marked as dangerous. they should be avoided as far as possible.
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