MECHANICAL AND COMPOSITIONAL LAYERS OF THE EARTH

Front

What are the mechanical layers of the Earth?

Back

The mechanical layers of the Earth include the lithosphere, asthenosphere, mesosphere, outer core, and inner core, classified based on their physical properties.

Front

What are the compositional layers of the Earth?

Back

The compositional layers of the Earth are the crust, mantle, and core, classified based on their chemical composition.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and the uppermost part of the mantle.

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer of the mantle located beneath the lithosphere, allowing for the movement of tectonic plates.

Front

What is the mesosphere?

Back

The mesosphere is the lower part of the mantle, characterized by increased density and viscosity compared to the asthenosphere.

Front

What is the outer core?

Back

The outer core is a liquid layer composed mainly of iron and nickel, located beneath the mantle and surrounding the inner core.

Front

What is the inner core?

Back

The inner core is a solid sphere composed primarily of iron and nickel, located at the center of the Earth.

Front

How does density change in the Earth's layers?

Back

Density increases as you move from the crust towards the center of the Earth.

Front

What materials primarily compose the Earth's crust?

Back

The Earth's crust is mainly composed of silicate rocks, including granite and basalt.

Front

What is the primary composition of the mantle?

Back

The mantle is primarily composed of silicate minerals rich in magnesium and iron.