Question

Refer to the illustration above. During which time period are the birth rate and death rate equal?

A. Time period 1
B. Time period 2
C. Time period 3
D. Time period 4

Answer 1

The equal birth rate and death rate occur in Stage 4 of the demographic transition model, corresponding to Time period 4 where there is stabilization of population growth.

Step-by-step explanation:

The student is asking about the demographic transition model, which shows how a population's birth rates and death rates change over time. According to the information provided, birth rates and death rates are equal during Stage 4 of the demographic transition. This stage is characterized by low birth and death rates, leading to a stabilization of population growth. During Stage 3, the birth rate starts to decline, closing in on the death rate. This eventually leads to the equality of birth and death rates in Stage 4.

Therefore, the correct answer is D. Time period 4, where the demographic transition model predicts that the birth rate will have decreased to match the low death rate, resulting in no population growth.