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 is made up of four distinct layers: 1  The inner core is in the centre and is the hottest part of the Earth. 2  The outer core is the layer surrounding the inner core. 3  The mantle is the widest section of the Earth. 4  The crust is the outer layer of the earth.
The hottest recorded temperature ever on earth was in Libya on September 13, 1922, which was 58 Â°C. Libya, Algeria, Death Valley and Iraq have some of the hottest temperatures on earth. During the summer, they have some of the hottest weather in the world. In contrast with these hot countries, the highest recorded temperature ever in the South Pole was on December 27, 1978, which was -14 Â°C.