Adense is produced in the region where warm and cold current meet.

Areas where warm and cold currents meet tend to have regular foggy conditions...

Historians are researchers of the past or people who understand the history of people. with this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!

Sonar is an application of the doppler effect used by submarines.  this test was on k12.