Name the scientist who disproved spontaneous generation theory.

Explanation

**Step-by-Step Solution:**

1. **Understanding Spontaneous Generation Theory**:
- Spontaneous generation is the idea that living organisms can arise from non-living matter spontaneously. This theory suggests that life can emerge from inanimate objects without any biological processes.

2. **Identifying the Scientist**:
- The scientist known for disproving the spontaneous generation theory is Louis Pasteur.

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