What is a speleothem that grows from the surface of a cavern and does not make contact with any other features?
A. stalagmite
B. stalactite
C. column
D. soda straw
E. sinkhole
A
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Ocean currents:
A) have a much stronger vertical component than horizontal component. B) are driven primarily by differences in ocean temperature over large distances. C) move at a 45 degree angle to the right of surface air flow. D) maintain the same direction at increasing depth.
Which moraine marks the furthest extent of glacial ice?
A) Lateral moraine B) Medial moraine C) Recessional moraine D) Terminal moraine
Köppen believed that the distribution of natural ________ was an excellent expression of the totality of climate
Fill in the blank(s) with correct word
Silicates rich in iron and/or magnesium are termed
A. ferromagnesian. B. magnetite. C. feldspars. D. cations.