Which of the following is not a factor that would limit the growth of a population ?

Options

A. Food shortage
B. Immigration
C. Disease
D. Famine

Explanation

To solve the question of which factor does not limit the growth of a population, we will analyze each option provided.

### Step-by-Step Solution:

1. **Identify the Factors**: We need to evaluate each option given in the question to determine if it limits population growth.

2. **Evaluate Food Shortage**:
- A food shortage means there is not enough food available for the population.
- This leads to malnutrition and increased mortality rates, which would limit population growth.
- **Conclusion**: Food shortage is a limiting factor.

3. **Evaluate Immigration**:
- Immigration refers to the movement of individuals into a population from outside.
- This increases the number of individuals in the population, thereby increasing population density.
- **Conclusion**: Immigration does not limit population growth; it can actually enhance it.

4. **Evaluate Disease**:
- Diseases can cause illness and death within a population.
- High mortality rates due to disease can significantly limit population growth.
- **Conclusion**: Disease is a limiting factor.

5. **Evaluate Famine**:
- Famine results in severe food shortages, leading to high mortality rates.
- This would limit the growth of the population due to increased deaths.
- **Conclusion**: Famine is a limiting factor.

6. **Final Decision**:
- After evaluating all options, we find that immigration is the only factor that does not limit population growth.
- Therefore, the answer to the question is **immigration**.

### Final Answer:
Immigration is not a factor that would limit the growth of a population.