Multiple choice

Consider the following statements:

  1. A tectonic scrap is steel slope that results from differential movement of the earth`s surface.
  2. The typical angel of repose for scraps of all origins is between 25o to 40o.
  3. A scrap produced by structurally controlled erosion at an ancient fault is known as fault-line scrap.
  4. A capable fault is one that shows movement at or near the ground surface at least once within the past 35,000 years. Which of the above statements are correct?

  1. 1, 2, 3, and 4

  2. 2, 3, and 4

  3. 1 and 3

  4. 2 and 3
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statements 1 and 3 correctly define tectonic scarps and fault-line scarps. Statement 2 is incorrect because the angle of repose varies significantly by material and origin, and statement 4 is often defined by different timeframes (e.g., 10,000 or 35,000 years) depending on the specific regulatory body, but 1 and 3 are the most universally accepted geomorphic definitions here.

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