The Duration of the Sunspot Cycle Is About

question 25

Multiple Choice

The duration of the sunspot cycle is about

• A) 27 days.
• B) 6 months.
• C) 3 years.
• D) 11 years.

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Definitions:

Great Lakes

are a group of five large freshwater lakes in North America, forming the largest group of freshwater lakes in the world by total area.

Upper Midwest

The Upper Midwest refers to the northern central part of the United States, including states like Minnesota, Wisconsin, and Michigan, known for its distinct seasons and agricultural productivity.

Irish Migration

The movement of Irish people to other countries, notably to the United States in the 19th and early 20th centuries, often driven by famine and economic issues.

Potato Crops

Plants of the Solanum tuberosum species, cultivated for their starchy tubers, which are a staple food in many parts of the world; their failure or success can significantly impact economies.