9. Which type of physical weathering occurs when one rock's movement breaks down another rock?
1. oxidation
2. abrasion
3. exfoliation
4. erosion

lil pump

Explanation:

answer; the above answer to the above statement is (true)

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.