Describe the interior structure of the Earth. (geography class 9th ICSE Syllabus)
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● Earth is made up of 4 different layers, each having unique features, which are described below.
● The diagram shows where each level is located.
● THE INTERIOR STRUCTURE OF THE EARTH is layered spherical cells.
● WE KNOW EARTH IS THE HAS AN OUTER SOLID CURST .
● THE EARTH highly viscous mantle, a liquid outer core, and a solid inner core..
● Mantle
Layer is the thin layer of earth and it is the layer on which we live. It is composed of many rocks and can reach 70 km thick at places. The layer is divided into a large part called tectonic plates. There are approximately 7 large and 12 small plates, which are 'float' at the top of the maple below them. The plates themselves are composed of two different types of crust, continental layer under sea and sea paste under the sea. Continental crust is thick (25-70 km) and light as it is made of low density rocks. Sea crust is thin (6-11 m) and heavy because it is made of rocks (mostly volcanic rocks) which is a high density. Marine Crust covers 2/3 parts of Earth's surface
Overlay
Manal is the largest layer of earth at 2,900 km thick. It makes up about 80% of the Earth's volume, the mental is divided into two layers, the upper and lower floors and the heat conduction currents within these layers. The upper floor is called semi-rock magma which flows slowly due to the conduction currents. It is less than 1,000 degrees Celsius in temperature. Due to pressure the lower cover is kept solid and between 1,000-3,500 degrees Celsius If you had to describe the metal as a whole, then it is classified as a liquid.
Outer pulp
The outer core liquid is made of iron and nickel and it is between 3,500-4,000 degrees Celsius, as the liquid metal rotates, similarly it is a current that produces the Earth's magnetic field. Convection currents in heat convection from the original powers. It is 2,900 km thick
Internal elements
The inner core is the hottest part of the earth reaching temperatures between 4000-4,700 degrees Celsius, which is as hot as the sun surface. It is composed of solid iron and nickel, which are under so much pressure, they can not melt. It is 1,200km thick and intense heat generated by heavy radioactive elements within the core because they become decayed.
_____________
● Earth is made up of 4 different layers, each having unique features, which are described below.
● The diagram shows where each level is located.
● THE INTERIOR STRUCTURE OF THE EARTH is layered spherical cells.
● WE KNOW EARTH IS THE HAS AN OUTER SOLID CURST .
● THE EARTH highly viscous mantle, a liquid outer core, and a solid inner core..
● Mantle
Layer is the thin layer of earth and it is the layer on which we live. It is composed of many rocks and can reach 70 km thick at places. The layer is divided into a large part called tectonic plates. There are approximately 7 large and 12 small plates, which are 'float' at the top of the maple below them. The plates themselves are composed of two different types of crust, continental layer under sea and sea paste under the sea. Continental crust is thick (25-70 km) and light as it is made of low density rocks. Sea crust is thin (6-11 m) and heavy because it is made of rocks (mostly volcanic rocks) which is a high density. Marine Crust covers 2/3 parts of Earth's surface
Overlay
Manal is the largest layer of earth at 2,900 km thick. It makes up about 80% of the Earth's volume, the mental is divided into two layers, the upper and lower floors and the heat conduction currents within these layers. The upper floor is called semi-rock magma which flows slowly due to the conduction currents. It is less than 1,000 degrees Celsius in temperature. Due to pressure the lower cover is kept solid and between 1,000-3,500 degrees Celsius If you had to describe the metal as a whole, then it is classified as a liquid.
Outer pulp
The outer core liquid is made of iron and nickel and it is between 3,500-4,000 degrees Celsius, as the liquid metal rotates, similarly it is a current that produces the Earth's magnetic field. Convection currents in heat convection from the original powers. It is 2,900 km thick
Internal elements
The inner core is the hottest part of the earth reaching temperatures between 4000-4,700 degrees Celsius, which is as hot as the sun surface. It is composed of solid iron and nickel, which are under so much pressure, they can not melt. It is 1,200km thick and intense heat generated by heavy radioactive elements within the core because they become decayed.
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