How can low-angle faults form if we expect normal faults to form with dips around 60°?
What will be an ideal response?
Answer: Low-angle normal faults can form by rotation of highangle normal faults (Figure 17.4 and 17.8) or they can form directly as low-angle structures where there are very weak layers (e.g. salt, overpressured clay) with very low friction or a preexisting weak fault (e.g. a thrust fault from an earlier contractional event).
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A trellis drainage is a tree branchlike pattern of streams. Indicate whether the statement is true or false
How are humans agents of weathering and erosion?
What will be an ideal response?
What is the pattern of the three-stage sequence by which firms have grown in the U.S.?
A) vertical integration (1890s-1919), then horizontal integration (1920s-1940s), followed by diversification (since 1950s). B) diversification (1890s-1919), then horizontal integration (1920s-1940s), followed by vertical integration (since 1950s). C) diversification (1890s-1919), then vertical integration (1920s-1940s), followed by horizontal integration (since 1950s). D) horizontal integration (1890s-1919), then vertical integration (1920s-1940s), followed by diversification (since 1950s). E) vertical integration (1890s-1919), then diversification (1920s-1940s), followed by horizontal integration (since 1950s).
In a solution of a solid in a liquid, the solid is called which of the following?
A) concentrate B) dissolvate C) solute D) solvent