Meridians Geography — Real

| Feature | Meridians (Longitude) | Parallels (Latitude) | |---------|------------------------|----------------------| | Shape | Half-circles | Full circles | | Direction | North–South | East–West | | Length | All equal (~20,000 km) | Decrease toward poles | | Number | 360 (180E + 180W + 0°) | 180 (90N + 90S + 0°) | | Parallelism | Converge at poles | Always parallel |

: The internationally recognized starting point for longitude.

While parallels determine the major climate zones (Tropics, Polar regions), meridians help geographers understand time zones and the relationship between distance and degrees. As you move toward the poles, the distance represented by one degree of longitude shrinks, which affects map projections and navigation calculations. meridians geography

A is an imaginary north–south line on Earth’s surface measuring longitude . The Prime Meridian (0°) runs through Greenwich, UK. Meridians converge at the poles, are used for time zones and navigation, and together with parallels (latitude) form the global grid system.

| Meridian | Significance | |----------|---------------| | | Often used to define Eastern/Western Hemispheres (avoiding major landmasses). | | 30°E | Eastern Europe, Turkey, East Africa. | | 45°E | Russia, Iraq, Somalia, Madagascar. | | 90°E | India, Bangladesh, Russia, Southern Ocean. | | 100°W | Central North America (Texas to Manitoba). | | 120°E | Western Australia, China, Philippines. | | Feature | Meridians (Longitude) | Parallels (Latitude)

In geography, a meridian is an imaginary north-south line that stretches from the North Pole to the South Pole. Unlike latitude lines, which are parallel and get smaller as they reach the poles, every meridian is the same length and they all intersect at the top and bottom of the world. The Prime Meridian: The World’s "Line Zero"

Every point on Earth can be defined by a specific intersection of a parallel and a meridian. For example, the coordinates identify a specific meridian (West longitude) and a specific parallel (North latitude) intersecting in New York City. This allows GPS satellites to pinpoint locations with incredible accuracy. A is an imaginary north–south line on Earth’s

In geography, the system of imaginary lines used to locate points on Earth’s surface relies on two components: parallels (latitude) and meridians (longitude). While parallels run east-west, are the backbone of global navigation, timekeeping, and mapping.

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