Why are master joints so important? What will be an ideal ...

[fagboi]

Why are master joints so important?
 
  What will be an ideal response?

Question 2

A crescent-shaped scarp often appears above the mass wasting form known as a ________.
 
  Fill in the blank(s) with the appropriate word(s).

[blfontai]

Answer to Question 1

Answer: These are the longest joints around, sometimes extending for considerable distances horizontal and vertically. Because these represent major zones of weakness for weathering, weathering proceeds fastest along the master joints. The spacing of the master joints determines much landscape development and the placement of topographic features such as the location of stream valleys.

Answer to Question 2

Answer: slump