This is the 9799th most frequent Portuguese word.
demográfica
"Demográfica" means "demographic" in English, relating to the structure of populations.
Here, 'demográfica' functions as an adjective describing the type of survey related to population characteristics.
A pesquisa demográfica revelou um aumento na população idosa.
The demographic survey revealed an increase in the elderly population.
In this case, 'demográficas' serves as an adjective modifying 'mudanças', emphasizing shifts in population dynamics.
Mudanças demográficas podem impactar a economia de um país.
Demographic changes can impact a country's economy.
Here, 'demográficas' describes 'tendências', referencing patterns related to population statistics.