How common is the fear of flying One out of every four people have a fear of

How common is the fear of flying one out of every

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1.How common is the fear of flying? 2.Compare the safety of flying in an airplane to traveling in a car. 3.Describe what creates air pressure. 4.How is air pressure affected by altitude? 5.Commercial jets typically cruise at altitudes from 30,000 to 40,000 feet. What are the advantages of flying so high? 6.At sea level the pressure is 14.7 pounds per square inch (psi). Why is the airplane cabin not pressurized to 14.7 psi when in flight? 7.Airplanes cabins are pressurized to 10.9 psi. Why is this pressure used?
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8.As the airplane ascends why do your ears pop? 9.List three ways to open the Eustachian tube to relieve the pressure. 10. Why would a person have to exert super human strength to open the airplane door when in flight?
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