A fresh stool sample is cultured to identify the cause of diarrhea and disease carriers. Most common pathogens, such as Salmonella species, Shigella, and E coli 0.157, can be grown on standard media. Yersinia and Campylobacter require a special culture medium.
And while scientists have never sent a probe to our planetâs core to obtain accurate measurements, various estimates have been made. For instance, it is believed that the temperature of the Earthâs inner core is as high as 7000 Â°C, whereas the outer core is thought to be between 4000 and 6000 Â°C. Meanwhile, the mantle, the region that lies just below the Earthâs outer crust, is estimated to be around 870 Â°C.
Temperature in the mantle. The upper mantle has a temperature range between 500 degrees and 900 degrees Celsius near the crust. Deep in the Earth at the boundary with the Earth's core the rock temperature is about 4000 degrees Celsius.Pressure in the mantle and outer core. Only the extreme pressure keeps the rocks in the mantle from melting.t the Moho boundary between the Earths mantle and the crust the density of the rock changes from 2.9 grams per cubic centimeter to 3.4 grams per cubic centimeter. This increase in density increases the speed that p waves travel through the body of the earth.