Why does Greenland appear white on a physical map?

Greenland appears white on a physical map primarily because of its vast ice sheet, which covers about 80% of the island's surface. This thick layer of ice reflects sunlight, giving it a bright, white appearance. Additionally, the map may use color-coding to represent different landforms, with white denoting ice and snow-covered regions. Thus, the white coloration effectively highlights Greenland's glacial landscape.