____ is a metamorphic rock generally made up of silica with smaller amounts of iron oxide and magnesium oxide.
A. Slate
B. Flagstone
C. Schist
D. Shale
Answer: C
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Las subviguetas se instalan a diferentes alturas de manera que la superficie superior tenga una inclinación para _____.
a. facilitar la aplicación del aislamiento b. proporcionar drenaje para el agua c. proporcionar apoyo estructural d. permitir la expansión térmica
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Tank heaters are capable of providing a specific amount of hot water per hour, referred to as the ____ rating, based on the tank size, efficiency rating and the fuel type.
A. hourly B. timed C. measured D. first hour
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0.73
A) 7.3% B) 0.0073% C) 73% D) None of these
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Hamsters are _____
a. strictly nocturnal b. strictly diurnal c. crepuscular d. trainable to alternate sleep patterns
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