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MOST IMPORTANT FACTS ABOUT EARTH (LAYERS OF THE EARTH CRUST, MANTLE AND CORE)

 

layers of the earth or inside earth




FACTS ABOUT EARTH

OUR INNER EARTH


Our earth is made up of several layers with one inside another

It consists of three layers


CRUST

·      Outermost layer

·      Thinnest of all the layers

·      It is 35km thick in continents and 5km in ocean flours

·      Main constituent of ocean mass are silica and alumina

·      Constituent of ocean flour is silica and magnesium

 

MANTLE

·      It is just below crust upto 2900km

·      It is solid but some of its inner side it is in liquid state

·      This part has 67% of the mass of earth

 

CORE

·      Innermost layer of earth

·      It is mainly made up of nickel and iron

·      It has a very high temperature and pressure

·      It has inner core and outer core

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