From the deepest to the surface, what are the parts of the earth's interior?

A) crust→mantle→core

B) core→crust→mantle

C) core→mantle→crust

D) mantle→crust→core

C) core→mantle→crust

Explanation:

From the deepest to the surface, Earth's interior is divided into three layers:

- Core: the core is the Earth's innest layer. It has very high temperatures (around 5000 degrees) and it extends from the centre up to a depth of about 2,900 km below the Earth's surface. The main elements present in the core are iron and nickel. It is further divided into two regions, called inner core and outer core: the main difference between the two is that while the inner core is solid, the outer core is liquid.

- Mantle: located between the core and the crust, the mantle extends up to about 10-100 km below the surface (depending on the location). It is the thickest layer. It mainly consists of silicate rocks; these rocks are solid but given the high pressures and temperatures, these rocks slowly move (on geological timescale) as they were a viscous fluid. These movement creates convective currents that drives the plate tectonics in the crust.

- Crust: the outermost layer of Earth, its thickness spans between 5 and 70 km depending on the location. It is further divided into continental crust, which is thicker and composed of silicate rocks (such as granite), lying under continents, and oceanic crust, which is thinner and mainly consists of basalt, lying under the oceans.