ANSWER THE QUESTIONS BELOW IN ENGLISH, TYPED, WITH 4-6 SENTENCES EACH.
ANSWER IN YOUR OWN WORDS AND REMEMBER THE FUNDAMENTAL POINTS.  ILLUSTRATE
WITH DRAWINGS OR FIGURES IF YOU WISH.

1. What is a quasar?

2. What is the Unified Model for Seyfert galaxies?

3. What is the origin of the light in the "Big Blue Bump?"

4. What is the origin of infrared light from quasars?

5. What are the radio properties of quasars?

6. How can the masses of central black holes be measured or estimated?

7. Why is understanding quasars important to astronomy in general?

The goal here is to express your understanding clearly and briefly in
English as if writing a paper or a proposal to a broad but astronomically
educated audience.