College course music appreciation. Check my answers please??

Which branch of musicology develops new techniques for analyzing music composition
1.historical musicology
2.ethnomusicology
3.music theory (my answer)
4.systematic musicology
which process involves the finding different musical lines to different instruments in a piece of music
1.Dynamics
2. articulation
3.musicology
4. orchestration (my answer)
which term is used when a composer shortens a motive by using only part of it or by taking away notes
1. fragmentation (my answer)
2 Crescendo
3.theme
4.repetition
which term names a musical parameter 1.variation
2. Dynamics (my answer)
3. theme
4.orchestration
which term names a Dynamic marking on a music score
1. Allegro
2. Forte (my answer)
3.staccato
4. legato
which elements are pieced together to create a theme in a piece of music
1.motives
2. parameters
3.Dynamics(my answer)
4. tempos