Classify the changes involved In the following processes as physical or chemical changes :
Digestion of food

Explanation

**Step-by-Step Solution:**

1. **Understanding the Process of Digestion:**
- Digestion of food involves breaking down complex food substances into simpler forms that the body can use. For example, carbohydrates are broken down into glucose.

2. **Identifying the Nature of Changes:**
- In digestion, food undergoes a transformation where its chemical structure is altered. This means that the original substances (like carbohydrates) are changed into new substances (like glucose).

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