airway length - a large surface area means more friction
airway radius - halving the radius increases resistance 16-fold
flow rate
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It affected the education in WW2 primarily because of security issues for the schools.
what was the armed resistance
Look at the casualty's chest to see if it rises and falls. (AF SABC)
During World War 2, virtually every occupied country had a significant resistance movement. However, the best known one was the French Resistance, also known as 'La Resistance Francaise.'
Money problems in the Civil War weren't clear. It was primarily based on slavery, manufacturing in the North, the Republican North, Democratic South, and the popular sovereigned states to the West.