Classify the changes involved In the following processes as physical or chemical changes :
Photosynthesis

Explanation

### Step-by-Step Solution:

1. **Understanding the Definitions**:
- **Physical Change**: A change that affects one or more physical properties of a substance. The chemical composition remains the same, and it is usually reversible.
- **Chemical Change**: A change that results in the formation of new chemical substances. The original substances undergo a chemical reaction, and this change is usually irreversible.

2. **Analyzing Photosynthesis**:
- Photosynthesis is the process by which plants use sunlight to convert carbon dioxide (CO2) and water (H2O) into glucose (C6H12O6) and oxygen (O2).
...