What does the shape of the given age pyramids reflects about the growth status of the related population?
A
i
ii
Expanding
Stable
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B
i
ii
Stable
Declining
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C
i
ii
Expanding
Declining
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D
i
ii
Declining
Stable
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Solution
The correct option is C
i
ii
Expanding
Declining
Triangular age pyramid has high proportion of pre-productive individuals, moderate number of reproductive individuals and fewer post-reproductive individuals. It represents young or rapidly growing population.
In urn-shaped age pyramid, the number of reproductive individuals is higher than the number of pre-reproductive individuals. It represents declining or diminishing population with negative growth. In bell-shaped age pyramid, the number of pre-reproductive and reproductive individuals is almost equal. Post reproductive individuals are comparatively fewer. It represents stable or stationary population, neither diminishing.