1.label the drawing corresponding to the Earth's layers2.describe the different layers of the earth using symbols3. choose from response grid on the right the symbol that you need to finish the figure on the left4draw the symbol/s in the corresponding layer of the earth​

1. 1.label the drawing corresponding to the Earth's layers2.describe the different layers of the earth using symbols3. choose from response grid on the right the symbol that you need to finish the figure on the left4draw the symbol/s in the corresponding layer of the earth​

Below the image is a description of the tasks. The Earth's layers are the crust, mantle, outer core, and inner core.

Explanation Specification: 

Earth's crust refers to the planet's outermost shell. Below the crust is the mantle, which consists primarily of solid rock and minerals and is broken up by regions of semi-liquid lava. Finally, a heated, dense metal core is at the Earth's center. The crust and upper mantle comprise the lithosphere, a single geological structure. The Earth's crust is composed of igneous, metamorphic, and sedimentary rocks. Igneous rocks, which form as magma cools, are the most prevalent type of rock. There are two forms of crust: oceanic crust and continental crust. The most abundant rocks and minerals are silicates (mainly silicon and oxygen molecules).

The oceanic crust is predominantly composed of silicate- and magnesium-rich basalt rocks. It is dense, weighing around 3 grams per cubic centimeter (1.7 ounces per cubic inch). The age and density of the oceanic crust grow with distance from the mid-ocean ridge, and it disintegrates in subduction zones. Subduction is a crucial geological process in which a tectonic plate melts or sinks into a thinner lithospheric plate at a boundary between converging plates.

Various varieties of granite make up the continental crust. Plate tectonics forms continental crust similarly to oceanic crust. The crust protrudes from the Earth and extends irregularly into the atmosphere. The thickest portions of the continental crust are located in the world's highest mountain ranges. A portion of the continental crust may be as old as the Earth itself.

Mantle

The mantle comprises 84% of the Earth's total volume and is located between the core and crust. Plate tectonics is driven by mantle activity, which contributes to volcanism, seafloor spreading, earthquakes, and mountain formation. The rock is less dense at tectonic plate borders and mantle plumes than elsewhere. In contrast, mantle rocks are flexible and can move plastically over millions of years while being subjected to immense pressure.

Upper Mantle

The upper mantle is a part of the Earth's interior that reaches approximately 410 kilometers below the surface (255 miles). The lithosphere and asthenosphere are typically recognized as two different zones on Earth.

Lithosphere

The lithosphere is the hard outer layer of the Earth, reaching approximately 100 kilometers deep (62 miles). The boundary between the crust and mantle of the lithosphere is known as the Mohorovic discontinuity, or simply Moho. Moho is located approximately 8 kilometers (5 miles) beneath the ocean and 32 kilometers (20 miles) beneath the continent.

Asthenosphere

The asthenosphere is a dense and fragile layer beneath the mantle of the Earth's crust. It is between 100 and 410 kilometers (62 and 255 miles). In the asthenosphere, the temperature and pressure are so great that the rock becomes pliable and partially molten. This is where geologists identify the difference in flexibility between the upper mantle's two layers.

Lower Mantle

The lower mantle spans from approximately 660 to 2,700 kilometers (410 to 1,670 miles) below the surface. The lower mantle is denser and has a higher temperature than the upper and transition layers. Typically, heat causes the rock to soften, whereas high pressure contracts the lower mantle.

Outer Core

The Earth's outer core is mainly made of liquid iron and nickel. The Bulls discontinuity is the hottest section of the core, with temperatures reaching 6,000 degrees Celsius (10,800 degrees Fahrenheit). The outer core's molten metals generate and maintain the Earth's magnetic field.

Inner Core

The Earth's inner core is a hot, dense sphere of (mostly) iron. Contrary to the outer core, the inner core is neither liquid nor molten. Iron atoms cannot be in a liquid form because the pressure and density are too high. Some geophysicists prefer to understand it as plasma with solid-like properties rather than as a solid.

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2. Activity 2 Objectives: • • Describe the properties of the layers of the Earth. Tell the composition of the layers of the Earth. Our Dynamic Earth Procedure: 1. Label the drawing corresponding to the Earth's layers. 2. Describe the different layers of the Earth using symbols. 3. Choose from the response grid on the right the symbol that you need to finish the figure on the left. 4. Draw the symbol/s in the corresponding layer of the Earth. ​

The layers of the earth consist of the crust, mantle, outer core and inner core.

Detail of Explanation:

Crust

Earth's crust means the outermost shell of the Earth. Beneath the crust is the mantle, also mostly solid rock and minerals, but broken down by soft areas of semi-solid magma. At the center of the Earth is a hot, dense metal core. The crust and upper mantle are part of a single geological unit called the lithosphere. The Earth's crust is made up of igneous, metamorphic, and sedimentary rocks. Most common rocks are igneous rocks that form when magma cools. Crust is divided into two types: oceanic crust and continental crust. Silicates (primarily compounds of silicon and oxygen) are the most abundant rocks and minerals.

Oceanic crust is composed of various types of basalt, mostly silicate and magnesium-rich rocks. It is dense, about 3 grams per cubic centimeter (1.7 ounces per cubic inch). The age and density of oceanic crust increase with distance from mid-ocean ridge; it breaks down at subduction zones. Subduction is an important geological process in which a tectonic plate melts or falls beneath a less dense lithospheric plate at a converging plate boundary.

Continental crust is composed of various types of granite. Like oceanic crust, continental crust is formed by plate tectonics. The crust stretches unevenly underground and protrudes into the atmosphere. Thickest parts of the continental crust are found in the highest mountain ranges in the world. Some sections of continental crust may be as old as the Earth itself.

Mantle

The mantle is 84% of the Earth's total volume and lies between its core and outer layer, the crust. Mantle activity drives plate tectonics and contributes to volcanoes, seafloor spreading, earthquakes, and mountain building. It is mostly hard rock, but less viscous at tectonic plate boundaries and mantle plumes. The mantle rocks there are soft and can move plastically over millions of years under great pressure.

Upper Mantle

The upper mantle is a region of the Earth's interior that extends from the surface to a depth of about 410 kilometers (255 miles). The two parts of the upper mantle - the lithosphere and asthenosphere - are often recognized as distinct regions within the Earth.

Lithosphere

The lithosphere is the outer hard part of the Earth, extending to a depth of about 100 kilometers (62 miles). The division of the lithosphere between the crust and mantle is called the Mohorovic discontinuity, or simply Moho. Moho lies about 8 kilometers (5 miles) below the ocean and about 32 kilometers (20 miles) beneath the continent.

   Asthenosphere

Asthenosphere is a dense and weak layer beneath the lithospheric mantle. It lies between about 100 kilometers (62 miles) and 410 kilometers (255 miles) below the surface. The temperature and pressure in the asthenosphere are so high that the rock softens and partially melts into a semi-molten state. This is where geologists mark the difference in ductility between the two layers of the upper mantle.

Lower Mantle

The lower mantle extends from about 660 kilometers (410 miles) to about 2,700 kilometers (1,678 miles) below the surface. The lower mantle is hotter and denser than the upper mantle and the transition layer. Heat usually responds to rock softening, while strong pressure holds the lower mantle tight.

Outer Core

The outer core of the Earth is composed primarily of liquid iron and nickel. The hottest part of the core is actually the Bulls discontinuity, reaching temperatures of 6,000 degrees Celsius (10,800 degrees Fahrenheit). The churned metals of the outer core create and maintain the Earth's magnetic field.

Inner Core

The inner core of the Earth is a hot, dense sphere of (mostly) iron. Unlike the outer core, the inner core is not liquid and is not molten. Pressure and density are too great for iron atoms to be in the liquid state. Some geophysicists prefer to interpret it as a plasma that behaves like a solid rather than a solid.

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