Cooking of food can be classified as a __________ change.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks us to classify the cooking of food. We need to determine what type of change occurs when food is cooked.

2. **Identifying the Type of Change**: Cooking involves heating raw ingredients, which alters their properties. We need to consider whether this change is physical or chemical.

3. **Defining Chemical Change**: A chemical change occurs when substances undergo a transformation that results in the formation of new substances with different chemical properties. This change is usually irreversible.

...