Which Structure Focuses Light Rays

question 39

Multiple Choice

Which structure focuses light rays?

• A) Y
• B) D
• C) L
• D) O
• E) X

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Definitions:

Military Industry

A sector of the economy involved in the production and sale of military weapons, equipment, and services.

Cold War

A period of geopolitical tension between the Soviet Union and its allies and the United States and its allies, characterized by threats, propaganda, and other measures short of open warfare, from the end of World War II until the dissolution of the Soviet Union.

Operation Dixie

A post-World War II campaign initiated by the American labor movement to unionize industrial workers in the southern United States.

Marshall Plan

A U.S. program providing aid to Western Europe following the devastation of World War II, aimed at rebuilding war-torn regions, removing trade barriers, and modernizing industries to prevent the spread of communism.