Table of contents: 1  Overview. 2  Detailed Reports Checklist. Statements Regarding Other IRS Filings and Tax Compliance. 3  Other organizations in North Carolina.  Affiliated organizations.
Answer: The amount of magnetic flux that rises up to the Sun's surface varies with time in a cycle called the solar cycle. This cycle lasts 11 years on average. This cycle is sometimes referred to as the sunspot cycle.
5 Student Guide, Activity 2: Sunspot Number Variations Â© Space Science Institute, 1999. All Rights Reserved. Answer the following questions and explain your answers: 1. What is the average time between the high points (periods of maximum sunspot activity)? 2. Predict the years for the next two sunspot maxima (sunspot cycle numbers 23 and 24). Show your work.