Answer:
1)WHICH BRASS INSTRUMENTS USES A SLIDE INSTEAD OF VALVES ?
B- trumpets
2)WHICH FAMILY PRODUCES SOUND THROUGH VIBRATION OF VOCAL CORDS ?
c- voices
Step-by-step explanation:
1) Trumps slide when you play them, so I'm guessing that's the right answer because none of the other choices have the ability to slide.
2) Vocal chords are used to sing in a choir, so that's voices.