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if jhon dalton hadn't born in 1766, chemistry hadn't developed by he and we hadn't had wnowledge to understand the world
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If Jhon DAlton hadn't been color-blindness, if hadn't done some mistakes in laboratory by confuse color reagents
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If Jhon Dalton hadn't discovered color-blindness, so much people hadn't understood why they can't see some colors good
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If Jhon Dalton had't designed a system to stady atoms and elements, we hadn't understood behavior abut molecles and chemical compounds
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If Jhon Dalton hadn't studied atomic strcutures he wouldn't able to organize atoms
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If Jhon Dalton hadn't discovered atomic weigths we wouldn't able to explains the nature
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if Jhon Dalton hadn't developed a system to study atomos and elements, we wouldn't able to make medicines
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if studies made by Jhon Dalton hadn'y been published, develope of chemistry had been slow
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if my teacher had taugh more to me about Jhon Dalton, Imay had been a chemistry Now!!
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if my teacher hadn't left this homework about Jhon Dalton, surely i never had learned abuot his life and work
