Minecraft's world is made up of chunks, which are 16 x 16 blocks large on the X and Z axis, and 384 blocks on the Y axis. When you first load into a world, a set number of chunks load around you, ...
A chunk is just a funny name for the units of land that generate as a Minecraft player explores the Overworld, Nether, or the End. Each chunk is determined by the map seed. As seen in the image above, ...