Explain how earth’s spheres rely on the water cycle

The answer is that water is continually restored through the Earth’s system through a process called the water cycle. The water cycle contains various processes that flow water through the Earth’s subsystems. Water dissolves from within soils and through vegetation and of bodies of water (such as rivers, lakes, and oceans).

"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."