An exudate is a fluid emitted by an organism through pores or a wound, a process known as exuding. Exudate is derived from exude, to ooze, from the Latin exsÅ«dÄre, to (ooze) out like sweat (ex- out and sÅ«dÄre to sweat).
Glacial striations on bedrock. Rocks embedded in the bottom of a massive glacier scratched the rock underneath as the glacier moved along. Even though there is no ice present today, these scratched lines are evidence that glaciers were here in the geologic past.lacial striations are parallel to the handle of the hammer. Look at how the lines all go the same direction. Click to Enlarge. About : The scratch marks on the schoolyard are formed by the process shown on top -- a broom dragged along over wet tar.
Glaciers deposit large amounts of sediment. of many places on Earth. clay. blocks of rock. the rock in a process called abrasion. on rock surfaces. affect both the land underneath them and the land around them. glacier pushes huge amounts of sediment to its sides and front. When the glacier retreats, the deposits of sediment remain as visible evidence that ice once moved through. The sediment left directly on the ground surface by a retreating glacier is called A deposit of till left behind by a retreating glacier is called a (muh-RAYN). The ridges of till deposited at the sides of a glacier are called lateral moraines. The till that marks the farthest advance of a glacier forms a deposit called an end moraine. Moraines formed by continental glaciers, such as those in North America during