How would an earthquake epicenter be located, using three seismograms, a map, and a protractor? What will be an ideal response?
First, determine the difference in first arrival time for P- and S-waves for the three seismogram
locations. Second, using a time-distance graph, determine the distance the epicenter is from each of the
seismogram stations. Use a protractor to draw a circle whose radius equals the distance shown on the
time-distance graph from each of the seismic stations. The point where the three circles intersect is the
earthquake epicenter.
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Which of the following frontal systems often move with greatest forward velocity?
A) warm front B) cold front C) occluded front D) stationary front
Compared to the windward side, the leeward side of a mountain range will most likely have
A) lower levels of transpiration and precipitation. B) higher levels of precipitation and lower levels of transpiration. C) higher levels of humidity. D) lower levels of sunshine.
Most scholars agree that the ancestors of todays Native Americans in Alaska, and the First Nations, aboriginals, and Inuit peoples in Canada likely ________
A) Arrived by foot and boat via an ice bridge from Northern Europe and Iceland B) Arrived by foot from Asia via the land bridge across the Bering Strait and later by boat from Asia C) Arrived by foot across the land bridge ice from Asia and later by boat from Iceland D) Arrived by boat from Asia, and later by foot via the arctic ice from Europe and Iceland
this vascular plant produces swimming sperm
What will be an ideal response?