In basic form, a comet tail is basically the molecular waves and energy it passes through as gravity pulls it toward a planet.
Simpler Terms: The tail is the deteriorating comet particles dust and ice particles
Why do comets have tails
No, they do not burn only comets have tails.
Comets sound like the answer to your question.
yes
No, that would be comets.
Because the comet is going so fast there looks like the comet has a tail.
It seems like you mean the "tails" of comets.
Comets
rocks and dust
It depends on how fast the comet is going.
When they reach the inner solar system.
In the sense that an observer can see tails on comets - no, the gravity and composition of Mars is not favorable to the production of a tail.