Joints are natural cracks of different shapes and sizes that develop in all types of rocks. Which of the following options are correct regarding exfoliation joints?
1) Exfoliation joints are caused by the expansion and contraction of rocks due to temperature changes.
2) Exfoliation joints are only found in sedimentary rocks.
3) Exfoliation joints are parallel to the surface of the rock.
4) Exfoliation joints are formed due to the pressure release on rocks.