Over the Course of a Sunspot Cycle of About 11

question 202

Multiple Choice

Over the course of a sunspot cycle of about 11 years, the regions of sunspot occurrence on the Sun move

• A) from the northern to the southern hemisphere or vice versa, across the equator, within the range of ±30° latitude.
• B) from the poles to the equator.
• C) poleward, moving from 10° to 30° latitude.
• D) toward the equator, moving from 30° to near zero latitude.

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Definitions:

Lethal Dosage

A measure of the amount of a substance required to cause death in a target organism or population.

Sodium Chloride

A chemical compound known as table salt, widely used in food seasoning and preservation, consisting of sodium and chloride ions.

Common Compounds

Chemical substances made up of atoms of two or more different elements, which are widely found or used in daily life.

Acute Poisoning

A sudden and severe exposure to a toxic substance causing harmful effects.