Analyze the image below and answer the question that follows. What is the International Date Line? Describe its geographic location. Why doesn't it follow a straight line? Why do we need it?

Answer:

The International Date Line is an imaginary line near 180° longitude, opposite the Prime Meridian, running mostly through the Pacific Ocean and roughly perpendicular to the Equator. It zigzags around islands and countries to avoid dividing territories and communities between two different dates. It is needed to establish where the calendar date changes by one day as people travel around the world.