The Magnetic Polarities of Sunspots Switch About Every How Many

question 2

Multiple Choice

The magnetic polarities of sunspots switch about every how many years?

• A) 5.5 years
• B) 11 years
• C) 22 years
• D) 44 years

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Definitions:

Inferior Phrenic Vein

Veins that drain blood from the diaphragm into the inferior vena cava or the left suprarenal vein.

Axillary Vein

A vein that accompanies the axillary artery and drains the upper limb and the lateral aspect of the thorax and breast.

Subscapular Vein

A vein that drains blood from the subscapular region, which includes the underside of the scapula, and typically joins with the axillary vein.

Internal Thoracic Vein

A vein that runs alongside the internal thoracic artery and drains blood from the chest wall and breasts into the brachiocephalic vein.