If You Look at a Folded Index Card Though a Pinhole

question 17

Multiple Choice

 If you look at a folded index card though a pinhole, you see the border as a(n) _____ because the card looks _____.

• A) illumination edge; flat
• B) illumination edge; 3-D
• C) reflectance edge; flat
• D) reflectance edge; 3-D

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Definitions:

Casualties

Individuals who are killed, wounded, or missing as a result of military conflict or accidents.

Thirteenth Amendment

Constitutional amendment adopted in 1865 that irrevocably abolished slavery throughout the United States.

Ironclad Ships

Warships in the 19th century that were covered with iron or steel armor plates, making them resistant to cannon fire and changing naval warfare.

Steam Locomotives

Engines powered by steam that are used to pull trains on railway tracks, significant in the 19th and early 20th centuries.