As you mentioned, for some women, the depth from the vaginal opening to the tip of the cervix is 3 to 4 inches when they are not sexually aroused. Other women may have a vaginal depth of five to seven inches.
(plural igneous rocks). ( 1 geology) one of the major groups of rock that makes up the crust of the Earth; formed by the cooling of molten rock, either below the surface (intrusive) or on the surface (extrusive).
Igneous means fiery, and igneous rocks are rocks that were made by heating them up in a fire. Usually that fire is the big fire inside the earth, under the earth's crust. Inside the earth, radioactivity creates very high temperatures of about 1000 degrees Celsius (that's about 1800 degrees Fahrenheit).