What causes the rock layers of mountains to form zigzag shape? A. a normal fault
B. folding of rock
C. a transform fault
D. continental plate uplift

Folding of rock is the correct answer

What are Folds?

Simply put folds are bends and twists found in rocks

Also, a fold is formed due to a rock's response to external forces or deformation, mostly due to ductile deformation.

Types of mountains

There are five main types of mountains:

1. Volcanic

2. Fold

3. Plateau

4. Fault-block and

5. Dome.

Fold mountains are created through a process called orogeny.

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d.) circle motion requires a force to give it a centripetal acceleration.