The rotation of the Sun is
fastest at the equator, slower at mid-latitudes, and slowest near the poles
In the thermonuclear process that is thought to heat the Sun, the nuclei of which chemical elements are converted to other nuclei to produce the requisite energy?
Hydrogen is converted to helium
The solar wind is
a gentle flow of solar material, mostly protons and electrons, that is always moving outward from the Sun
The Sun sends charged particles toward Earth where they contribute to the aurora. Each of the following events contributes substantially to this outflow of particles except one. Which is the exception?
The major feature that distinguishes a sunspot from other regions on the Sun is
its very powerful magnetic field
What is the average length of time from one maximum in the number of sunspots on the Sun to the next maximum?
How much longer can the Sun continue to generate energy by nuclear reactions in its core?
about 5 billion years
The centers of the granular cells on the surface of the Sun appear to be brighter than the edges of the cells because
the centers are hotter than the edges
Where is the chromosphere on the Sun?
The chromosphere is the layer above the visible surface of the Sun
What is the cause of the sunspot cycle on the Sun?
Subsurface magnetic fields are twisted by the Sun's differential rotation and break through the surface as sunspots, then gradually cancel each other and return below the surface