Question

write the major constituents and density and location of the following layers? 1.crust 2. mantle 3. core​

Answer 1

inner -core

middle -mantle

outer- crust

Answer 2

Earth's average density is 5.515 g/cm3.

Explanation:

Mental

• The solid bulk inside the Earth is called the mantle. It is usually hot and it is situated inside the earth's most heated core.

• It is almost 2900 kilometres in thickness and almost 84% of Earth's total volume is made up of its mantle.

Crust

• Earth crust is the outermost layer of the Earth and it makes up almost 1% volume of earth.

• The crust is mostly made up of a variety of rocks.

• Oceanic crust is 5 to 10 km in thickness whereas continental crust is 30 to 50 km in thickness.

Core

• The core is the innermost part of the earth and is made up of iron and Nicole alloy.

• It is divided into two groups.

• The inner core has a radius of 1220 km whereas the outer core has a radius of 3400km.