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General Awareness Test
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Directions: In which given year discovery/invention was made:
Bacteria
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A
1683
💡 Explanation:
1683 is given as the correct answer for the discovery of bacteria. Antony van Leeuwenhoek first observed bacteria in the 1670s using microscopes, with 1683 being a commonly cited year for his bacterial observations. 1867 is too late, 1955 and 1939 are much too recent.