Definition: A savanna biome is a woodland biome which has seasonal water availability and includes, across its entire spatial extent, trees spaced sufficiently far apart to allow an unbroken layer of grass, sedge (Cyperaceae) or rush (Juncaceae) communities to live.
Definition: An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
