A loop or sheet of gas hanging above an active region of the Sun ...

[cool]

A loop or sheet of gas hanging above an active region of the Sun is a(n) ________, often striking along the limb during total eclipses.
 
  A) sunspot B) flare C) aurora D) prominence E) granule

Question 2

The star Vega has an absolute magnitude of about 4 and an apparent magnitude of about 0. Based on the definitions of absolute and apparent magnitude, we can conclude that ________.
 
  A) Vega's surface temperature is cooler than the Sun
  B) Vega is nearer than 10 parsecs from Earth
  C) Vega's luminosity is less than that of our Sun
  D) Vega has a parallax angle of 1/10 arcsecond

[CourtneyCNorton]

Answer to Question 1

D

Answer to Question 2

B