describe the features of different layers of the earth. draw a well labeled of the same.
Answers
Inner Core:
It is the center and the hottest layer of the Earth. The inner core is solid and made up of iron and nickel with temperature up to 5,500oC. Due to its immense heat energy, the inner core is more like the engine room of the Earth.
Outer Core:
The outer core of the Earth is similar to a very hot ball of metals, whose temperature is around 4000 oF to 9000oF. It is so hot that the metals inside are all in the liquid state. The outer core is located around 1800 miles under the crust and approximately 1400 miles thick. It is composed of metals such as iron and nickel. The outer core surrounds the inner core.
Mantle:
Mantle is the widest section of the Earth. Its thickness is approximately 2,900 km. Mantle is mainly made up of semi-molten rock known as magma. The rock is hard in the upper part of the mantle, but lower down the rock is softer and begins to melt.
The mantle is located directly under the Sima. The mantle consists of very hot and dense rock.
Crust:
The crust is the outer layer where we live. The thickness is around 0-60 km. It’s a solid rock layer divided into two types:
Continental crust covers the land and,
Oceanic crust covers water.
The crust is the most widely studied and understood. Mantle is hotter and capable of flowing. The outer and inner core are much hotter with great pressures that you can be squeezed into a ball smaller than a marble if you are able to go in the center of the Earth.
the inner core is solid and the outer core is liquid and the mantle is solid/plastic . This is due to relative melting points of the different layer (nickel-iron core,silcate crust and mantle) and it increase in temperature and pressure as depth increase.
