Compared to nonpoint source pollution, point source pollution a. comes from many sources. b. is more difficult to control. c. can be more readily identified. d. does not happen near rivers.

C. Can be more readily identified.

Explanation:

A point source pollutant is the one which comes from a single source and the path of the pollutant can be tracked to it's source of origin. Hence, pollution caused by the point source pollutant can be controlled.

"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."