Mention the major events during photosynthesis.

Explanation

### Step-by-Step Solution:

1. **Definition of Photosynthesis**:
Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using chlorophyll, carbon dioxide, and water.

2. **Raw Materials Required**:
The major raw materials needed for photosynthesis are:
- **Carbon Dioxide (CO₂)**: Absorbed from the atmosphere through stomata.
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