Mark the correct statement w.r.t. to declining population-(i) The grap...
Only ¡ is correct bcoz urn shaped age pyramid number of reproductive individual is more than number of pre reproductive individuals.Therefore it represents population.
Mark the correct statement w.r.t. to declining population-(i) The grap...
Declining Population and its Characteristics
Declining population refers to a decrease in the number of individuals in a population over time. It is important to understand the characteristics associated with declining populations. Let's evaluate each statement to determine the correct statement regarding declining population:
(i) The graph is urn-shaped:
This statement is incorrect. The shape of the graph representing a declining population is not urn-shaped. Instead, it is characterized by a downward trend, indicating a decrease in population size over time.
(ii) Such population shows positive growth:
This statement is incorrect. A declining population, by definition, indicates a negative growth rate. The population is decreasing over time, not growing.
(iii) It has a small number of pre-reproductive and reproductive population:
This statement is correct. In a declining population, there tends to be a smaller number of individuals in the pre-reproductive and reproductive age groups. This is because fewer individuals are reaching reproductive age or choosing to have fewer children, resulting in a decrease in the population size.
(iv) It represents a young population:
This statement is incorrect. A declining population does not represent a young population. In fact, a declining population often indicates an aging population, where there is a higher proportion of individuals in older age groups compared to younger age groups.
Correct statement:
According to the given options, the correct statement is only option (i) - "The graph is urn-shaped."