ASK YOUR HCG QUESTIONS HERE. In most normal pregnancies at hCG levels below 1,200 mIU/ml the hCG usually doubles every 48-72 hours. At levels below 6,000 mIU/ml the hCG levels normally increase by at least 60% every 2-3 days, though increases between 50-60% can sometimes still be seen in normal pregnancies.SK YOUR HCG QUESTIONS HERE. In most normal pregnancies at hCG levels below 1,200 mIU/ml the hCG usually doubles every 48-72 hours. At levels below 6,000 mIU/ml the hCG levels normally increase by at least 60% every 2-3 days, though increases between 50-60% can sometimes still be seen in normal pregnancies.
The thin, outermost layer of the earth is called the crust. It makes up only one percent of the earth's mass. The continental crust is thicker than the oceanic crust. It can range from 25 km thick at the edges to 70 km thick near the center. The oceanic crust on the other hand is only about 7 km thick and considerably more dense.
The outer layer, is called the crust, and ranges from 10 to 70 km thick. (see link) The crust is formed by the cooling of the earth, which is still going on.   You should think of the crust as the thin, outer layer, but its a bit more complicated.hat is the crust of the Earth? The crust is the outermost chemical layer of the Earth, of hard and brittle rock, composed of oceanic crust and continental crust. The crust is typically about 23 miles thick â¦ beneath continents, and about 6.5 miles thick beneath oceans.