Help ?!? I have no idea what to do??

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000

Blank is a rock with a find dark texture that makes up the oceanic crust

The diagram shows the development of the oocyte and the follicle during the menstrual cycle. identify at which stage in the cycle the hormone levels are at their highest and most active.