Answer:
flapper valves.
Explanation:
According to my research on Aircraft Fuel Tanks, I can say that based on the information provided within the question many fuel tanks incorporate flapper valves. Like mentioned in the question these are implemented to prevent fuel from flowing away from the boost pump or tank outlet. This can happen when the aircraft is experiencing high gravity force/pressure.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
the correct answer is
C.
Love God with all your heart and soul. because god sent him as a messenger for god and as a sacrifice for us
If I'm not mistaking i think it was 40 yrs
Acupuncture was a medical discovery made by people in Ancient China, that helped change Ancient China because they where now developing more medical skills that helped conserve more of their people and also make it possible to flourish.