What are the largest joints, through which other joints tend to spread off of?
A. master joints
B. faults
C. joint systems
D. lava vesicles
E. microscopic joints
A
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The inner core is
a. solid. b. liquid. c. gas.
What is a disadvantage of using multibeam echo systems to map the entire seafloor?
a. It can only detect a single narrow corridor of the seafloor. b. There are many beams that radiate from the ship's hull. c. There are very few vessels that are actually outfitted with these systems. d. The systems send a pulse of sound every ten seconds.
What can not initiate a seiche?
A) Tides B) Storm surge C) Seabed displacement D) Internal waves
The pedogenic regime typified by silica removal and iron-aluminum concentration near the surface is ________
A) laterization B) podzolization C) gleization D) calcification E) salinization