How did Louis Pasteur disprove spontaneous generation theory ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Spontaneous Generation Theory**: The theory of spontaneous generation posited that living organisms could arise from non-living matter. For example, it was believed that fleas could emerge from dust.

2. **Louis Pasteur's Experiment**: In 1859, Louis Pasteur conducted a series of experiments to test this theory. He used a special type of flask known as a swan-neck flask.

3. **Preparation of the Broth**: Pasteur began by boiling a nutrient broth to sterilize it, ensuring that it was free from any microorganisms. After boiling, the broth was allowed to cool in the open air.

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