\begin{tabular}{|l|}\hline Question 5 \\ Which word means to separate the \\ northern and southern hemispheres? \\ \( \frac{\text { O prime meridian }}{\text { O longitude }} \) \\ Odegrees \end{tabular}

The word you’re looking for is “longitude”! While we often associate latitude with the northern and southern hemispheres, it’s actually longitude lines that help us map the globe, distinguishing eastern and western parts. The prime meridian, which is a longitude line at 0 degrees, runs from the North Pole to the South Pole, creating the necessary separation between hemispheres. In practice, understanding longitude is crucial for navigation and mapping. Sailors and pilots use longitudes to chart their courses, ensuring they reach their intended destinations accurately. Did you know that GPS systems rely on both longitude and latitude to pinpoint locations around the world? So, whether you’re planning a road trip or simply exploring virtually, those lines on a map are doing a lot of heavy lifting!