What occurs on the surface of the Sun during a solar cycle minimum?
a. decreased temperature of the photosphere
b. reversal in rotation of the Sun
c. little to no solar wind
d. little to no sunspot activity
e. partial dissipation of the corona
Question 2Modern observations have shown that the geometry of the Universe is ____.
a. flat, and the Universe must be infinite
b. flat, and the Universe must not be infinite
c. open, and the Universe must be infinite
d. closed, and the Universe must be infinite
e. closed, and the Universe must not be infinite
Question 3When two arches in a magnetic field encounter each other, ____ can cause powerful eruptions called ____.
a. solar winds; convective zones
b. prominences; limb darkening
c. filaments; coronal holes
d. supergranules; Coulumb barriers
e. reconnection events; flares
Question 4The proper interpretation of a what a galaxy's redshift measures is ____.
a. its motion in space toward the observer
b. its motion in space away from the big bang
c. the stretching of space between the galaxy and the observer
d. the contraction of space between the galaxy and the observer
e. the stretching of space between the galaxy and the big bang
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