Answer:
Thixotropic refers to a gel/substance that is thick and stable but will start to move or flow like a fluid when stress is applied (being shaken, stirred, placed under pressure, etc.). This is important to keep in mind when building houses as landslides or other disruptions and movements in the ground can happen during an earthquake with thixotropic clay in the soil, causing the buildings there to collapse or otherwise be damaged.
One barrier in communication is being deaf (hard of hearing). This can cause many difficulties in communication due to people not hearing you. Although to overcome this barrier we can learn ASL (American sign language) to speak to each other in another language using our hands.
This is just an example but the main focus is dead and ASL to overcome hope this helps :)
Not for sure what your paragraph is about, but here a few words for you :)
Sui Generis: being the only example of its kind, unique
Profligate: using money, resources, etc., in a way that wastes them
Obduracy: refusing to change in any way
Obstreperous: very noisy or difficult to control
Who is speaking voice they related
