Logging in (or registering) will help the system to select questions that you need to focus on.

G3A13

What does the A-index indicate?

Select	Answer
A	The relative position of sunspots on the surface of the Sun
B	The solar radio flux at Boulder, Colorado
C	The amount of polarization of the Sun's electric field
D	The long term stability of the Earth's geomagnetic field

---

Hamboozler: Copyright 2007 Four Batons Technology. All rights reserved.
By continuing to use this site, you are agreeing to the Privacy Policy and Terms of Service.
Contact Us