29.  Bacteria was first discovered by
A. A.V. Leeuwenhoek
B. Robert Hooke
C. Robert Koch
D. Louis Pasteur

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30.  Electron microscope was discovered by
A. Garhn and Shortt
B. Knoll and Ruska
C. Farmer and Moore
D. Janseen and Janseen

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31.  Who invented penicillin ?
A. Alexander Fleming
B. Louis Pasteur
C. Dreser
D. Edward Jenner

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32.  Who invented vaccination for Small Pox'?
A. Sir Fredrick Grant Banting
B. Sir Alexander Fleming
C. Edward Jenner
D. Louis Pasteur

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33.  Who invented the Jet Engine?
A. Karl Benz
B. Sir Frank Whittle
C. Thomas Savery
D. Michael Faraday

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34.  X-rays were discovered by
A. Faraday
B. Roentgen
C. H. Davy
D. Lavoisier

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35.  Who invented vaccination?
A. James Simpson
B. Edward Jenner
C. Alexander Fleming
D. Christian Barnard

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