There are around 40 species of bacteria in the mouth, which protects the mouth cavity from diseases.
Fun fact: While coughing, air is thrown out of the mouth at a speed of over 800 km/h. Jet planes fly at this speed !
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Did you know ?
Random'Did you know' is a fact book, facts about science, history, astronomy, psychology etc with the inclusion of a fun fact at the end. All credit goes to the the scientists and researchers who spent hours to discover these facts also the crazy minds w...
