A fold is a stack of planar surfaces that are bent during permanent deformation and this happens when the earth's crust is compressed together.
What is a Fault?
This refers to the planar fracture that occurs in a volume of rock that causes significant displacement.
Hence, we can see that there are three types of fold and they are:
- (1) anticlines,
- (2) synclines
- (3) monoclines.
Please note that your question is incomplete so I gave a general overview of the concept to give you a better understanding.
Read more about faults and folds here:
https://brainly.com/question/14240712
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