Mixed economy is usually a market and a command economy mixed together. This type of economy is better than others since it has some government regulation but not total regulation. Since market economies are ruled by only consumers and command are only ruled by governments, it can cause a lot of economic problems for both, with businesses and fraud, so having a balanced mix between the two is better. (Sorry i have bad grammar english is not my first language
A fault scrap is a small offset of the ground surface moves vertically with the respect to the other and the faulting is attributes to the displacement of the land with the movement along the faults and is indicated by the consequent erosion along the geologic faults. They are hard and weak rocks and the scrap formation is equal to the vertical weight displaced.