Massachusetts Tests for Educator Licensure (MTEL) 2025 – 400 Free Practice Questions to Pass the Exam

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What is the key function of the 180 Degree Meridian?

To determine time zones

To demarcate the Eastern and Western hemispheres

The key function of the 180 Degree Meridian is to demarcate the Eastern and Western hemispheres. This imaginary line serves as the counterpart to the Prime Meridian (0 degrees), which divides the Earth into Northern and Southern hemispheres. Located at 180 degrees longitude, this meridian is essential in understanding global geography as it helps in identifying and defining the boundaries of the hemispheres.

Understanding this meridian is important because it plays a crucial role in navigation, cartography, and global positioning. While other options may relate to geographic or navigational concepts, they do not accurately represent the primary importance of the 180 Degree Meridian, which is specifically focused on hemispheric division.

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To mark the boundary of the Arctic region

To indicate where magnetic north is located

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