Question

answer the following questions.

1. in which type of fault does the hanging wall move down relative to the footwall?

a. normal fault
b. reverse fault
c. strike-slip fault

1. which letter in the diagram below indicates the footwall of the fault?

a. a
b. b
(diagram with labeled blocks a, b and fault lines)

1. what type of fault is shown in the diagram above?

a. normal fault
b. reverse fault
c. strike-slip fault

1. what can a sudden slip in a fault cause?

a. volcano
b. wildfire
c. earthquake

1. where are faults most commonly found?

a. edges of tectonic plates
b. center of tectonic plates
c. deep ocean trenches

1. how is energy released during an earthquake?

a. tsunami waves
b. seismic waves
c. gamma waves

Explanation:

Question 1

In a normal fault, the hanging wall moves down relative to the footwall due to tensional forces. Reverse faults have the hanging wall move up, and strike - slip faults involve horizontal movement.

In a fault diagram, the footwall is the block of rock that lies below the fault plane. From the diagram, block A is below the fault plane (with the arrow indicating movement), so A is the footwall.

A reverse fault has the hanging wall move up relative to the footwall. In the diagram, the hanging wall (block B) moves up relative to the footwall (block A), so it's a reverse fault. Normal faults have hanging wall down, strike - slip is horizontal.

Answer:

a. normal fault

Question 2