Please make sure that you understand the passage before actually recording it. It is very challenging in terms of vocabulary.
A lacustrine plain is an area created out of deposition largely related to the past existence of lakes in the area, although in some cases, the original lakes still exist, having shrunk in size over time. Lacustrine refers to the condition of being affected by a lake or several lakes. Lacustrine plains are some of the flattest of all landform features and have few surface interruptions, although they may contain freshwater marshes, aquatic beds and lakeshore environments. Lacustrine plains are of varying origin, but most are underlain by fine, flat-bedded silt and clay deposited in lakes. The plains are typically related to the impoundment of water by one of the following processes: glaciation, differential uplift, and lake creation in now-arid inland basins.
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Vocabulary:
lacustrine plain
landform feature
surface interruption
freshwater marsh
aquatic bed
to be underlain by fine, flat-bedded silt
impoundment of water
differential uplift