The Mercalli Scale is a scale from ________
A) I to XII that rates the structural damage due to an earthquake
B) I to X that rates the total energy released during the main quake and all aftershocks
C) 1 to 10 that rates the energy released by an earthquake
D) 1 to 12 that rates the energy required for faulting to occur
A
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Which of the following describes the conditions when ordinary thunderstorms, which last about one hour only, begin to dissipate?
A. The downdraft spreads throughout the cloud and cuts off the updraft. B. All precipitation particles in the cloud turn to ice. C. Solar heating at the ground begins to decrease. D. Lightning neutralizes all the electrical charge in the cloud.
For the same force, which cannon imparts greater speed to a cannonball?
A. A short-barreled cannon. B. A long barreled cannon. C. both the same D. none of the above
The two most important languages in South America are
A) Dutch and English. B) English and Spanish. C) French and Spanish. D) Portuguese and Spanish. E) Creole and Portuguese.
A myelinated nerve fiber is ________, whereas an unmyelinated nerve fiber is ________.
Fill in the blank(s) with the appropriate word(s).