The Earth is comprised of four distinct layers:
- Inner Core: The innermost layer, composed primarily of iron and nickel, is solid due to immense pressure.
- Outer Core: Surrounding the inner core, the outer core is also made up of iron and nickel, but it is liquid due to lower pressure.
- Mantle: The thickest layer of the Earth, the mantle is mostly solid rock, but it behaves like a very viscous fluid over long periods.
- Crust: The outermost layer, the crust is thin and rocky, and it's where we live.
While these are the primary layers of the Earth, we can also consider the atmosphere, which is comprised of several layers. These layers are crucial for life on Earth, providing a protective shield from the sun's radiation and regulating temperature.
