Name two discoveries of chemistry which have helped
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Penicillin. Not a cowshed, but a wartime penicillin production plant. ...
The Haber-Bosch process. Ammonia revolutionised agriculture. ...
Polythene – the accidental invention. ...
The Pill and the Mexican yam. ...
The screen you are reading on.
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fern rjrjrjrhrj to the why rhrhrhh egg eg ev
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