Tell whether the following is certain to happen, impossible, can happen but not certain
You are older today than yesterday

Answer

To determine whether the statement "You are older today than yesterday" is certain to happen, impossible, or can happen but not certain, we can analyze it step by step.

### Step-by-Step Solution:

1. **Understanding the Statement**: The statement says that you are older today than you were yesterday. This refers to the concept of age, which increases as time passes.

**Hint**: Think about how age changes over time.

2. **Analyzing Age Progression**: Every day, as time moves forward, a person's age increases. For example, if you are 15 years old today, tomorrow you will be 15 years and 1 day old.

**Hint**: Consider what happens to your age as each day passes.

3. **Determining Possibilities**:
- **Certain to Happen**: This means that it will definitely occur without any exceptions.
- **Impossible**: This means that it cannot happen under any circumstances.
- **Can Happen but Not Certain**: This means there is a possibility, but it is not guaranteed.

**Hint**: Reflect on whether there are any scenarios where the statement could be false.

4. **Conclusion**: Since age always increases with each passing day, it is certain that you will be older today than you were yesterday. Therefore, the statement is "certain to happen."

**Hint**: Ask yourself if there is any situation where you could be the same age or younger than yesterday.

### Final Answer:
The statement "You are older today than yesterday" is **certain to happen**.