Problem: Determine the topic of the passage. "It became the 45th state admitted to the Union on January 4, 1896." Topic:

A: Utah

Problem: Determine the topic of the passage. "LR44 is the IEC designation for an alkaline 1.5 volt button cell , commonly used in small LED flashlights , digital thermometers , calculators , calipers , watches , clocks , toys and laser pointers ." Topic:

A: LR44 battery

Problem: Determine the topic of the passage. "The U.S. subprime mortgage crisis was a set of events and conditions that led to a financial crisis and subsequent recession that began in 2008." Topic:

A: Subprime mortgage crisis

Problem: Determine the topic of the passage. "The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: a.m. (from the Latin ante meridiem, meaning "before midday") and p.m. (post meridiem, "after midday")." Topic:

A:
12-hour clock