Layer of the atmosphere with the lowest temperature is the

The coldest temperature in the atmosphere occurs at the top of the mesosphere, which is known as the mesopause, where temperature can reach about -90°C (130° F) varying according to seasons and latitude. As the mesosphere extending (approximately 50-85 km) upwards above the stratosphere, the temperature is decreasing. The air is present in the mesosphere is too thin to breathe.

Mesosphere is the 3rd major layer of the atmosphere, present directly below the thermosphere and directly above the stratosphere. In the mesosphere, the temperature decreases as the altitude are increasing.

"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."

that scientist would be robert hooke