explain mental layer in points
Answers
Explanation:
A mantle is a layer inside a planetary body bounded below by a core and above by a crust. Mantles are made of rock or ices, and are generally the largest and most massive layer of the planetary body. Mantles are characteristic of planetary bodies that have undergone differentiation by density. All terrestrial planets (including Earth), a number of asteroids, and some planetary moons have mantles.
The Earth's mantle is a layer of silicate rock between the crust and the outer core. Its mass of 4.01 × 1024 kg is 67% the mass of the Earth. It has a thickness of 2,900 kilometres (1,800 mi) making up about 84% of Earth's volume. It is predominantly solid but in geological time it behaves as a viscous fluid. Partial melting of the mantle at mid-ocean ridges produces oceanic crust, and partial melting of the mantle at subduction zones produces continental crust.
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Answer:
The different points of mantle are below:
•The Mantle is the second layer of the Earth.
•The mantle is divided into two sections.
•The average temperature of the mantle is 3000° Celsius.
•The mantle is composed of silicates of iron and magnesium, sulphides and oxides of silicon and magnesium.
•The mantle is about 2900 km thick.
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