The Global Positioning System (GPS) can help us to find exact locations using satellite signals. Which of geography’s three questions can GPS help us answer?

where

Explanation:

it helps you answer where it is, because the GPS helps you get to WHERE you need to be.

Explanation:

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place