Modern astronomers suspect the corona is heated by a. shock ...

[Haya94]

Modern astronomers suspect the corona is heated by
 
  a. shock waves rising from below the photosphere.
  b. the solar wind.
  c. magnetic carpets.
  d. shock waves rising from below the photosphere, the solar wind, and the solar magnetic field.
  e. none of the others.

Question 2

If a satellite is in orbit around Earth and the satellite's altitude increases, then the circular velocity __________________.
 
  a. decreases b. increases
  c. is zero d. None of the other choices are correct.

[gasdhashg]

Answer to Question 1

c

Answer to Question 2

b

[Haya94]

Excellent

[cici]

Thanks for the timely response, appreciate it