According to the first law of thermodynamics, the total amount of energy in the universe _______.
A) remains constant
B) is constantly decreasing
C) is lost to entropy
D) is constantly increasing
The first law of thermodynamics states that energy cannot be created or destroyed but it can be converted from one form to another.
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What characteristics indicate whether a rock is an intrusive or extrusive igneous rock?
What will be an ideal response?
An earthquake epicenter is the:
a. point where the seismograph is located. b. point within Earth where movement along the fault occurs. c. geographic center of a group of related earthquakes. d. point on the surface directly above where a fault rupture occurs. e. the strongest in a series earthquake aftershocks.
By the close of the Paleozoic, all the continents had fused into the single super continent of ________
A) Europa B) Gondwanaland C) Pangaea D) Laurasia E) Appalachia
The number of wave crests passing a fixed location per unit of time is called the ________
A) wave base B) wave frequency C) wave period D) waveform E) wavelength