When continental crust collides with continental crust both are to buoyant to be subducted, as the two plates continue to push against each other it uplifts the crust with reverse faults and creates mountains.
Fluid retention scores (on a 0â4 scale) peaked on the first day of menstrual flow (mean Â± SE: 0.9 Â± 0.1), were lowest during the mid-follicular period, and gradually increased from 0.22 Â± 0.05 to 0.50 Â± 0.09 over the 11 days surrounding ovulation.
From the point of first menstruation, a girl's periods will likely be irregular for several years. Even when the menstrual cycle is regular, girls may have cycles as short as 15 days or as long as 40 days. The amount of her menstrual discharge may also vary from month to month, but on average a girl will lose about a quarter-cup of blood during her period.