The Navajo Sandstone is a wind-blown sand deposit with large cross-beds. How would the sand of these ancient sedimentary rocks be characterized?
A)poorly sorted
B)well-sorted
C)compacted
D)poorly graded
E)cemented
B
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What would be the recurrence interval for a flood to reach the top of the new levee?
What will be an ideal response?
On what basis are Mercalli intensity values assigned to locations?
A) interpretation of seismograms B) interpretation of the length of fault rupture C) qualitative perceptions of and structural response to the shaking D) proximity to the epicenter of the earthquake
_______ are underwater volcanic mountains
Fill in the blank(s) with correct word
Which of the following is NOT a way that volcanoes and magma can cause earthquakes?
A. Many volcanoes have steep, unstable slopes that can cause landslides that shake the ground. B. Moving magma within or below the volcano can cause earthquakes. C. Volcanoes can load the crust, causing faulting and earthquakes. D. Volcanic explosions cause seismic waves. E. All of these are ways that volcanoes can cause earthquakes.