The content that does not contain helpful bacteria is ; ( A ) Liquid soap
Bacterias are both helpful and harmful in certain circumstances, the bacterias contained in the digestive system helps in the breaking down and digestion of food particles consumed therefore they can be said to be helpful as well.
A handful of soil contains bacteria that is useful during Nitrogen fixation into the soil, while a bowl of yogurt also contains helpful bacteria which makes the digestion of yogurt possible .
Hence we can conclude that The content that does not contain helpful bacteria is Liquid soap
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