Bending over and touching your toes describes flexion in reference to your intervertebral discs.
Answer is: each base can attch to only one other type of base
Answer:
Running water is the leading cause of soil erosion, because water is abundant and has a lot of power. Wind is also a leading cause of soil erosion because wind can pick up soil and blow it far away. Activities that remove vegetation, disturb the ground, or allow the ground to dry are activities that increase erosion.