Build a medical term from the information provided. EXAMPLE: inflammation of the sinuses sinusitis
plasma separation

sinusitis

Explanation:

Sinusitis is defined as the swelling or inflammation of the linings of the tissue of sinuses. It is a condition where the cavities where the nasal cavities swells up.

The healthy nasal cavity or sinuses are always filled with air. But sometimes they get blocked and then they are filled with a fluid where bacteria germs grow and causes infection. This causes swelling up of sinuses cavities and a lot of pain is experienced by the person.

Other symptoms are runny nose, headache, nasal congestion and facial pain.

answer

crater lake was formed when mount mazama produced a large eruption and collapsed to form a caldera, which then filled with water forming a lake.