Final answer:
New technologies are revolutionizing the way national boundaries are created and changed, making physical features less challenging.
Step-by-step explanation:
New technologies are making physical features less of a challenge when creating and changing national boundaries. Satellite imagery and GPS mapping systems allow for precise knowledge of geographical boundaries. This eliminates the need for on-site exploration and reduces errors in mapping. Additionally, advancements in communication technology make it easier for countries to negotiate and agree on boundary changes, enhancing the efficiency of the process.
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