What category does the Aerophones, Chordophones, Electrophones, idiophone, Membran-phones belong to

Barbara is interested in pursuing a career in the science and math pathway. which qualifications will her reach that goal? a.an advanced knowledge of physics and math b.an advanced knowledge of engineering and math c. an advanced knowledge of physics and robotics an d. advanced knowledge of machinery and math

Which explains extrinsic motivation? a)motivation in which there is a reward b)motivation that is personally satisfying c)motivation that is personally meaningful d)motivation in which the subject is interesting

What phrase indicates someone has knowledge and understanding of computer,internet,mobile devices and related technologies?