What happens when a tsunami approaches the shore?
A) Its velocity drops rapidly.
B) Its period remains the same.
C) Its wave height increases
D) All of these choices
D
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A region has just had a 100-year flood. That means that
A. another equally large flood will occur in one hundred years. B. another flood of that size cannot happen in the same year. C. a flood event of that size has a 1 percent probability of occurrence in the next year. D. All of the choices are correct.
Mountain chains that are examples of the two types of orogenic zones: __________,
__________. Fill in the blank(s) with the appropriate word(s).
The most common problem encountered by seabirds coated with oil is ____.
A. immediate death B. vulnerability to predators C. loss of buoyancy and insulation, causing deaths from drowning or loss of body heat D. poisoning by taking in the oil internally E. starvation
True or False: Color is always a reliable property for identifying a mineral
Indicate whether this statement is true or false.