Replacement level is the number of children a couple must produce to replace themselves so as to maintain population at zero growth lavel. The value of replacement level for developed countries is

Options

A. 2.7
B. 2.1
C. 1.9
D. 1.2

Answer

To determine the replacement level for developed countries, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Replacement Level**:
- Replacement level refers to the number of children a couple must have to replace themselves in the population, ensuring that the population remains stable (zero growth). This means that the number of births equals the number of deaths over time.

2. **Defining the Replacement Level**:
- The replacement level is typically slightly above 2 children per couple. This is because not all children will survive to adulthood, and some may not reproduce.

3. **Replacement Level for Developed Countries**:
- For developed countries, the replacement level is generally accepted to be **2.1** children per couple. This figure accounts for infant mortality and other factors that may prevent all children from reaching reproductive age.

4. **Reason for the Value of 2.1**:
- The value of 2.1 is derived from the need to ensure that each couple can replace themselves (2 children) while also compensating for the average number of children who may not survive to adulthood (the additional 0.1).

5. **Conclusion**:
- Therefore, the replacement level for developed countries is **2.1** children per couple.