by air blowing into them
The soud comes from the trumpet player's lips vibrating. in a saxophone the reed vibrates.
refer to the question "origin of the trumpet"
there are holes/tubes in each valve, and as air passes through them different sounds come out when you change the path.
Air moving across the vocal chords, causing vibrations.
It depends on you definition of trumpet. The trumpet has come along way and made many changes. The oldest 'trumpet' can be found in Egypt and was part of a tomb. Yet the modern trumpet(with valves) has been constantly changing.
Stuck...Seriously though - It depends on the instrument. If it really is a trumpet, then chances are it's custom made, and the mouthpiece is not designed to come off. In this case, however, it is still called a trumpet.
The trumpet is the highest member of the brass family. By highest I mean it can go the highest in pitch.
Trumpet lilies come in a variety of colors including pink, yellow and white and are trumpet shaped. Lilies symbolize beauty, charm, peace, and grace.
the common day trumpet was invented some time in the 1800s, but bugles and horns date back to ancient times.
If, by "bb" you mean b-flat, that is a trumpet that plays in the key of B-flat, as opposed to a C trumpet or E-flat trumpet.
because that is not meant for the trumpet!
sounds like a stuck fuel injector