1. With reference to the population structure of this country, identify the challenges for each of the following in 1950
a. Economic sectors
b. Social support
c. Health and education

2. In 2010 discuss the economic challenges facing this country due to the changing of nature of the population.

3. In 2050, the population of this country is significant different from 100 years prior. Explain the impact of an aging population on the following
a. Economic sectors
b. Infrastructure
c. Health and education

Choose the description that best matches each word. write the correct letter in the blank. 1. ostinato a. large, extended composition for chorus and orchestra 2. atonality b. full orchestra 3. musicology c. festive, march-like opening to a play or “semi-opera” 4. concerto d. small group of solo instruments 5. minimalism e. music contrasting a full orchestra and solo instruments 6. art song f. music played under the action to influence the mood 7. strophic form g. a vocal song focusing on artistic expression 8. incidental h. each stanza of a poem is set to the same music 9. oratorio i. repeated musical pattern that provides unity to a piece 10. dissonance j. steady beat; simple harmonies; short, repetitive melody 11. concertino k. harsh, unstable sounding of pitches; harmonic tension 12. tutti l. all 12 tones of chromatic scale, no tonal center 13. entrada m. the historical and scientific study of music