\begin{tabular}{l} Which force is responsible for triggering the initial movement of air? \\ \( \begin{array}{l}\text { O gravity force } \\ \text { O Coriolis force } \\ \text { O friction force } \\ \text { O pressure gradient force }\end{array} \) \\ \hline\end{tabular}

Did you know that the pressure gradient force is essentially the universe’s way of telling air to move? When there are differences in air pressure, the pressure gradient force acts to equalize those differences, giving air that initial push it needs to start moving. It’s like nature's version of “let’s clear this out!” In practice, this force plays a critical role in weather systems. Think about those breezy summer days; it’s the pressure gradient force working its magic! Meteorologists use this concept to predict wind patterns and weather changes by analyzing pressure charts, allowing us to prepare for everything from sunny picnics to stormy nights!