An Aurora (Shown Below)is Produced When ____________

question 26

Multiple Choice

An aurora (shown below) is produced when ____________.

• A) solar wind particles are directed toward the poles and excite atmospheric gases
• B) swamp gases rise upward from the arctic tundra
• C) radiation in the Van Allen belts can be seen on a clear, cold night
• D) lightning travels from cloud to cloud rather than cloud to ground

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Definitions:

Confederation Congress

The governing body of the United States under the Articles of Confederation, serving from 1781 to 1789, before the adoption of the Constitution.

Western Lands

Refers to the territories west of the Mississippi River in the United States, historically significant for expansion and settlement during the 19th century.

Cash Crops

Agricultural products grown primarily for sale to others rather than for personal use or consumption by the farmers themselves.

Perpetual Union

A term reflecting the intention or agreement among the U.S. states to remain united indefinitely, foundational to the concept of the United States.