Cleavage is ____
A)the breaking of minerals along smooth planes of weakness determined by the strength of their chemical bonds
B)not useful for mineral identification
C)determined by how many different elements are combined in the formation of a particular mineral
D)the breaking of minerals along planes of fracture resulting from strong hydrogen bonds
E)mineral breakage along irregular surfaces
A
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Fly to Point 5 on the west side of the Panamint Range in Panamint Valley, and then to Point 6. Point 5 is near the lowest part of the Panamint Valley playa. Move the cursor around in this area to find the elevation of the lowest part of the playa. Then use the ruler to measure the distance to Point 6 at the southern edge of the playa. Determine the gradient of the playa.
To answer the question, go to the Hess Physical Geography Laboratory Manual, 12th edition, website at www.MasteringGeography.com, then Exercise 45 and select “Exercise 45 Part V Google Earth™” to open a KMZ file in Google Earth, or scan the QR (Quick Response) code for this exercise and view “Exercise 45 Part V Google Earth™ video.” The opening view is looking south down Death Valley in Death Valley National Park, California. The Black Mountains are the lower range to the left (east), and the Panamint Range is the higher range to the right (west). A portion of this area is shown in Map T-10.
A playa is a dry lakebed characterized by an area of salt crust left behind by evaporation of water
Indicate whether the statement is true or false
What creates caverns in limestone rock?
a. ?Underground streams erode the walls of the channels they flow through. b. ?Limestone is deposited as a sediment, and caverns exist where organic material was trapped and decomposed. c. ?Earthquakes create gaps at weak boundaries in the limestone. d. ?Limestone dissolves in the presence of salt, and creates caverns when located under the sea. e. ?Acidic rainwater dissolves limestone rock, leaving empty caverns.
Which of the following is a depositional feature of glaciers?
A)cirque B)arête C)horn D)roche moutonée E)end moraine