Multiple Choice
Coronal holes are thought to be
A) conduits through which the solar wind can easily escape.
B) the primary source of dust released from the Sun.
C) fluctuation in human behavior (e.g., astrology) .
D) powerful loops of magnetic fields, linked to active regions.
Correct Answer:

Verified
Correct Answer:
Verified
Q223: What are spicules?<br>A) small but rapidly erupting
Q224: The major feature that distinguishes a sunspot
Q225: Astronomers have recently compared the relative abundances
Q226: Thermonuclear fusion reactions in the core of
Q227: What name is given to an
Q229: The solar wind is almost entirely ionized
Q230: What is the reason that the edge
Q231: Hydrogen "burning" by fusion reactions occurs only
Q232: Which layer of the Sun's atmosphere has
Q233: What is the name of the layer