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Though most of them are too small to be seen with the naked eye, bacteria are everywhere. They appeared on Earth more than 3 billion years before the first dinosaurs. Some bacteria cause deadly diseases, but many of them are helpful to us. They fertilize the soil by breaking down dead material, and... Full description
Series: You wouldn't want to live without
You wouldn't want to live without antibiotics
You wouldn't want to live without books
You wouldn't want to live without cell phones
You wouldn't want to live without clean water
You wouldn't want to live without electricity
You wouldn't want to live without toilets
You wouldn't want to live without bacteria!
You wouldn't want to live without dentists!
You wouldn't want to live without extreme weather!
You wouldn't want to live without fire!
You wouldn't want to live without insects!
You wouldn't want to live without vaccinations!
You wouldn't want to live without bees!
You wouldn't want to live without boogers!
You wouldn't want to live without clocks and calendars!
You wouldn't want to live without glass!
You wouldn't want to live without math!
You wouldn't want to live without money!
You wouldn't want to live without nurses!
You wouldn't want to live without plastic!
You wouldn't want to live without soap!
You wouldn't want to live without the internet!
You wouldn't want to live without trees!
You wouldn't want to live without writing!