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.
Report Abuse. -Glacial acetic acid is concentrated (very little or no water) acetic acid. It is called glacial because it forms small crystals slightly below room temperature that look like ice. -A catalyst is a chemical substance that is used to speed up (or increase the rate of) a chemical reaction.est Answer: 1) Glacial Acetic Acid is 'water free acetic acid' (99.5% - 100% purity). 2) A catalyst is a chemical that speeds up a chemical reaction, without itself undergoing any chemical/physical change. An 'inhibitor' is a chemical that slows down a chemical reaction. Source(s):