NO!
yes u may
the act of chewing helps open your eustation tubes in your ear to release pressure
People do not eat bubble gum, it is intended to be chewed but not swallowed, and nobody actually needs to chew bubble gum in an airplane, however, some people find that the chewing helps them to open their Eustachian canal, which they need to do in order to equalize the air pressure in their middle and outer ears, as the plane changes its altitude.
You have a ball on an airplane..
Depends on the kind of airplane.
gum base
no
no
No.
Find a package of gum and take it out. Then you have mint flavored gum! Ta Da!
Chewing gum can help, or wearing earplugs, or swallowing to relieve the pressure in your ears.