Please help thank you
What must occur in order for a hanging valley to form?
A. A glacier must form and later grow larger.
B. One glacier must form after another glacier.
C. A cirque must enlarge until it forms a new valley.
D. Two glaciers must erode valleys at different rates.

what have fossils ever done for you

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explanation:

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"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."

d we did this already