Questions: a they are mini-cyclones that depend on overall weather cycles on the Sun b. the orbital period of the comets that hit the Sun are generally 11 years long c the Sun's rotation twists up the magnetic field in an 11 year cycle.

a they are mini-cyclones that depend on overall weather cycles on the Sun
b. the orbital period of the comets that hit the Sun are generally 11 years long
c the Sun's rotation twists up the magnetic field in an 11 year cycle.

Transcript text: a they are mini-cyclones that depend on overall weather cycles on the Sun b. the orbital period of the comets that hit the Sun are generally 11 years long c the Sun's rotation twists up the magnetic field in an 11 year cycle.

Solution

Solution Steps

Step 1: Understanding the Question

The question is asking about the reason behind a specific cycle related to the Sun. The options provided suggest different phenomena that could explain an 11-year cycle.

Step 2: Analyzing the Options

Option a: Suggests mini-cyclones dependent on weather cycles on the Sun. This is not a known explanation for an 11-year cycle.
Option b: Suggests comets with an 11-year orbital period hitting the Sun. This is not a recognized scientific explanation for the Sun's cycles.
Option c: Suggests the Sun's rotation twists up the magnetic field in an 11-year cycle. This is a well-known explanation for the solar cycle, which is characterized by the periodic change in the Sun's magnetic field, leading to variations in solar activity such as sunspots.

Step 3: Selecting the Correct Answer

The correct explanation for the 11-year cycle related to the Sun is the twisting of the Sun's magnetic field due to its rotation, which is described in option c.