8-similar folds are a- Retain their shape b- Diffrent shape c- Other 9- Recumbent folds are a- Plung b- Roated more than 90 c- Other 10- parallel isogonns are a- Parallel to the axial surface b- Convergent c- Other 11- Recumbent fold have axial surface a-horizontal b-plung c-Other 12- the axial surface is vertical a- Horizontal normal b- Plunging normal c- Other 13- Box fold is which the crust a-broad b- brod Other

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