Describe the characteristics of:i) Crust ii) Core
Answer Text: -it is the outermost layer of the earth.-also called the lithosphere- extends 0-50km- It is made up of solid rocks - Composed of two layers /sial and sima/continental crust and oceanic crust - Sial is rich in silica and aluminum - Sima is rich in silica and magnesium -sima is made up of basaltic rocks which are brittle - sial is made up of light coloured rocksii) - The core is the innermost layer of the earth.-composed of two parts i.e. inner core and outer core - it is also called barysphere or centrosphere.- The main mineral of the outer core are iron and nickel - The main mineral of the inner core is iron.
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