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Read the following extracts carefully. Discuss in pairs and then write the answers to the questions given below them‘Do germs form from other germs, or do they just come of themselves?’ (a) What did people like Pasteur actually believe about germs? (b) Which of the two was called ‘spontaneous generation’? (c) How did Pasteur prove that he was right? |
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Answer» (a) People like Pasteur believed that germs were carried in the air and might infect other things that came in contact with them. (b) Which of the two was called ‘spontaneous generation’? (c) Pasteur proved that he was right by conducting an experiment in which the neck of a bottle with the soup was extended to step germs from entering. Only when the soup was poured into this bend, it came in contact with germs from dust and got infected. |
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