Geothermal energy is ________
A) energy originating from the sun and slowly released from Earth's core
B) only able to be used during the day
C) geographically limited
D) intermittent
E) based on nuclear reactions in the Earth's core
Answer: C
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Fossils of Archaeopteryx are important because they ____
a. prove that dinosaurs could fly b. indicate birds may have evolved from theropod dinosaurs c. indicate theropod dinosaurs may have evolved from birds d. indicate some dinosaurs were warm-blooded e. show that small dinosaurs had feathers
The fault displacement from the 2011 Tohoku-Oki, Japan earthquake was the largest ever recorded. Indicate whether the statement is true or false
The circulation of water at great depths is driven by: a. temperature only
b. density. c. surface winds. d. salinity only.
The oceanic tides rise and fall in a rhythmic cycle that takes place roughly once every ________ hours
A) 4 B) 6 C) 12 D) 18 E) 24