Caused]by Magnetic "storms " in the surface and near surface
Yes, the shape of a sunspot cycle can be described as somewhat wavy. Sunspot activity follows an approximately 11-year cycle with peaks and valleys in sunspot numbers over time, reflecting the Sun's magnetic activity. This cycle is not perfectly regular due to various factors influencing the Sun's behavior.
Sunspot maximum and sunspot minimum are the points in time (roughly 6 years apart) when the sun is producing the most, or the least sunspots. In the past this has been measured both by sunspot area and sunspot count and is directly tied to the solar magnetic cycle.
How did the dirction of the moon change over time? How did the dirction of the moon change over time?
http://en.wikipedia.org/wiki/Sunspot_cycle The definition for sunspot cycle is "the recurring increase and decrease in the number of sunspots over a period averaging about eleven years."
A change over time is often referred to as a gradual change.
Prominence Sunspot in 1945
Yes, friends do and will change over time. Every person changes over time.
No, acceleration is the change in speed over time.
how can eutrophication change a lake over time
Islands change over time by erosion
No, your Rh factor does not change over time.
Evolution is a change in species over time.