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 Earth has many layers. The three main layers of the Earth are: The crust (The outermost layer of the Earth). The mantle (Middle layer of the Earth) and. The core (Inner layers of the Earth). The crust is the outermost layer of the Earth and the thinnest of the layers. The Earth's crust is where the mountains, hills, valleys, plains, lakes and oceans are formed. The mantle is the largest layer of the Earth. The mantle is much hotter than the crust, just as the core is much hotter than the mantle.