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does anybody know why we shouldnt coat food cans with zinc???? thnx in advance :)

plz i need quick answers :S

i have another question: why cant we use zinc to coat food cans???

thnk u so much for ur help :)

so if both answes were in paper 1 which one would i choose??

How do we prevent the rust of iron griders in bridges?? Plz anwer me. Thanx in advance :)

actually u r not the only one who wrote answes that made no sense!!! i bet we all did :(

haha!!!!!!!!!! what u r saying means that the whole world was not prepared!!!! well, i have another suggestion.. maybe u have to add some words to your description like: " a piece of cake... full of salt, chilli and bugs" I think this would be better

Todays exam was a disaster :( At first i thought i was given an A-level exam!