What do microbiologists do? why are their contributions important to science?

Microbiologists aim to answer many important global questions by understanding microbes. They work in many places, from labs in universities, research institutes and industrial companies, to investigating microbes in fieldwork. However knowledge of microbiology is not just important for these careers. Microbiologists can also use their knowledge and skills in a wide range of careers in industry (marketing, technical support and regulatory affairs) education (teaching, museums and science centers), business (patent attorney or accountant) and communications (public relations, journalism and publishing).

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They both determine the exact age of rocks.