Discussion
A population pyramid narrow at the base and higher in size reflects :
A. High death rates of infants
B. Low birth rates
C. Increased life expectancy
D. Decreased death rates
Choose the correct option :
Answer: C
The answer is Only B, C and D.
A population pyramid narrow at the base has few people in the youngest age groups, which means a low birth rate (B). When the pyramid stays broad higher up, more people are surviving into the older age groups, which reflects decreasing death rates (D) and increased life expectancy (C). This is the shape of developed countries such as Japan.
A high death rate among infants (A) belongs to the opposite shape: a pyramid broad at the base and narrowing quickly, as in countries with high birth and death rates. So every option including A is wrong.
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