You may be offered hip replacement surgery if: 1  you have severe pain, swelling and stiffness in your hip joint and your mobility is reduced. 2  your hip pain is so severe that it interferes with your quality of life and sleep. 3  everyday tasks, such as shopping or getting out of the bath, are difficult or impossible.
The Earth consists of four concentric [concentric: Describe shapes (usually circles) which share the same centre point.] layers: inner core, outer core, mantle [mantle: A zone of hot rock in the interior of the Earth, located between the outer crust and the molten core.] and crust [crust: The outer
Beneath the Earthâs crust is the mantle, which is made up of a layer of gooey hot magma, semi-solid rocks and minerals. The mantle has a depth of about 1806 miles from the crust and reaches temperatures close to 1,832 degrees Fahrenheit. The core, the inner layer of the Earth, has the hottest temperature. It is divided into two sections: the outer core and the inner core. The outer core, the region surrounding the inner core, has a depth of 3,981 miles from the Earth's crust and is slightly cooler than the inner core, with temperatures close to 6,692 degrees Fahrenheit.