Question

What are the two parts of the crust? *what is the basis of the classification?

Answer 1

The Earth's Crust resembles the skin of an apple. It is thin in contrast to the other three layers.

The outside is just around 3-5 miles (8 kilometres) thick under the seas (maritime hull) and around 25 miles (32 kilometres) thick under the landmasses (mainland covering).

The temperatures of the outside differ from air temperature on top to around 1600 degrees Fahrenheit (870 degrees Celcius) in the most profound parts of the hull.

You can heat a portion of bread in your stove at 350 degrees Fahrenheit, at 1600 degrees F. rocks start to liquefy.

Answer 2

Answer:

Earth's crust is the outermost layer. It can be classified into Continental crust and oceanic crust, on the basis of chemical composition. The continental crust is made up of silica and aluminium. Oceanic crust is made up of silica and magnesium.