Q. With reference to the population pyramid, which of the following statements is/are correct?
Select the correct answer using the code given below:
Q. With reference to the population pyramid, which of the following statements is/are correct?
Select the correct answer using the code given below:
The correct option is D 1 only
Explanation:
Statement 1 is correct. India’s pyramid is bottom-heavy i.e. the Indian population has a larger proportion of children, teenagers, and young adults compared to China’s.
Statements 2 and 3 are incorrect. There are three main trends in populations that affect the shape of a population pyramid. The first is when there are both high fertility and high mortality rates among younger members. This type of population, known as “expansive,” creates a sharp triangle shape in the graph. Expansive pyramids mean that the population does not increase much in total number and has many young people. The second trend, known as “constrictive,” is when there is a lower mortality rate with the fertility rate remaining constant. These population pyramids are wider in the middle of the graph as the population has high numbers of middle-aged and elderly people, but fewer young people. The third trend is “stationary” which is a population with low mortality and low fertility rates. These graphs have a square or “pillar” shape rather than a pyramid one.
Explanation:
Statement 1 is correct. India’s pyramid is bottom-heavy i.e. the Indian population has a larger proportion of children, teenagers, and young adults compared to China’s.
Statements 2 and 3 are incorrect. There are three main trends in populations that affect the shape of a population pyramid. The first is when there are both high fertility and high mortality rates among younger members. This type of population, known as “expansive,” creates a sharp triangle shape in the graph. Expansive pyramids mean that the population does not increase much in total number and has many young people. The second trend, known as “constrictive,” is when there is a lower mortality rate with the fertility rate remaining constant. These population pyramids are wider in the middle of the graph as the population has high numbers of middle-aged and elderly people, but fewer young people. The third trend is “stationary” which is a population with low mortality and low fertility rates. These graphs have a square or “pillar” shape rather than a pyramid one.
