you have an air lock in tank , which will stop fuel going from tank its nothing
This question needs mroe details is the air releasing coming from a rear air suspension or from the engine. when you try to start does it do anything at all click, turn over? did it do anything before this happened
only when you refill it : I am going to assume this in a automobile : however even if not the response would be about the same : Once you re-add the liquid to the unit , keep the cap open and begin your circulation device or start your engine : you will observe the liquid level drop as it moves and air begin to rise toward the opening: Air trapped inside can cause the liquid to rise and exit the open cap area: expect that to happen : place a drain pan or near that opening. this process of releasing trapped air : always allow a minimum of 8 minutes per liter to flow .
air pollution
Only if you want to get sucked out of the plane.
by releasing harmful gases
Normally, yes.
Start by bleeding the cooling system of air. Google is your friend.
sublimation
by breathing and storing air inside and releasing it
This process is called Transpiration.
Denitrification, I believe.
The church of England did not want him preaching at their church again.