What increases air turbulence to extract dust and other debris from air traveling through the nasal cavity?

Nasal conchae and meatuses Nasal conchae, also known as nasal turbinates, are curved shelves of spongy bones forming in the walls of human nose. The nasal conchae function is to regulate the airflow through the nasal passages to provide rapid warming and humidifies air as it passes to the lungs. The nasal conchae divides the nasal cavity into ducts or meatuses, this are the  passages in the nasal cavity formed by the projections of the nasal conchae.

The investiture controversy began as a power struggle between pope gregory vii (1072–85) and henry iv, holy roman emperor (1056–1106).[2] a brief but significant struggle over investiture also occurred between henry i of england and pope paschal ii in the years 1103 to 1107, and the issue played a minor role in the struggles between church and state in france, as well.by undercutting the imperial power established by the salian emperors, the controversy led to nearly 50 years of civil war in germany, and the triumph of the great dukes and abbots. imperial power was finally re-established under the hohenstaufen dynasty. historian norman cantor:

Master planned communities outside of chicago. note: population density means people living in an area per square mile. chicago, an urban and highly populated area has a much more higher density than a desert, amish community, settlement, or nomadic region.