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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it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.