How do waves propagate across the water?
A. the wave moves forward but water moves in a circular motion
B. water within the wave travels as far as the wave does
C. water near the surface moves less than water at depth
D. All of these choices are correct.
Answer: A
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In the Richter Magnitude Scale, a M=8 earthquake releases __ times as much energy as a M=7 earthquake.
a. 5 b. 10 c. 32 d. 100
Which of the following is a description of an anhydrous salt?
A) a salt which is insoluble in water B) a salt which is soluble in water C) a salt with no water incorporated in its crystal structure D) a salt with water incorporated in its crystal structure
Air in the eye of a hurricane is warmer than the surrounding air
a. True b. False
Potential energy would best be expressed when
A. changing a liquid to a gas. B. atoms moving at 200 km/hr. C. pulling or pushing an object. D. atoms moving at 500 km/hr.