Statement I: Age pyramid of expanding population is broader at base an...
Age pyramid of expanding population is broader at base and thin upwards. Number of individuals in pre-reproductive age is more than post reproductive age. Population size is technically called as population density.
View all questions of this test
Statement I: Age pyramid of expanding population is broader at base an...
**Explanation:**
The correct answer is option C, which states that all the statements are correct. Let's analyze each statement in detail:
**Statement I: Age pyramid of expanding population is broader at the base and thin upwards.**
- This statement is correct. An age pyramid represents the distribution of population across different age groups. In an expanding population, the base of the pyramid is broader, indicating a larger proportion of young individuals. As the age groups progress, the number of individuals decreases, resulting in a pyramid shape that is broader at the base and thin upwards.
**Statement II: Number of individuals in pre-reproductive age is more than post-reproductive age.**
- This statement is also correct. In a population, individuals in the pre-reproductive age group (typically children and adolescents) outnumber those in the post-reproductive age group (typically older adults). This is because the pre-reproductive age group consists of individuals who can potentially reproduce in the future, while the post-reproductive age group comprises individuals who have already passed their reproductive age.
**Statement III: Population size is technically called population density.**
- This statement is incorrect. Population size and population density are different terms used to describe different aspects of a population.
- **Population size** refers to the total number of individuals in a population. It provides information about the magnitude of the population.
- **Population density**, on the other hand, refers to the number of individuals per unit area or volume. It provides information about the concentration or distribution of the population in a given area.
Therefore, as statement III is incorrect, the correct answer is option C, where only statements I and II are correct.
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.