This is the 12552nd most frequent Portuguese word.
tectônicas
Relating to the structure and movement of Earth's crust.
Here, 'tectônicas' is used as an adjective describing 'placas', indicating the type of geological plates.
As placas tectônicas se movimentam lentamente, causando terremotos.
Tectonic plates move slowly, causing earthquakes.
In this sentence, 'tectônicas' modifies 'forças', illustrating natural forces related to Earth's tectonic activity.
As forças tectônicas moldaram a paisagem ao longo de milhões de anos.
Tectonic forces have shaped the landscape over millions of years.
Here, 'tectônicas' is an adjective for 'mudanças', referring to changes related to tectonic phenomena.