The part of the Earth that is considered the outer layer which is cool and brittle and includes the crust and the uppermost mantle is the Lithosphere.
This is the topmost part of the Earth's layers and the very layer that we are standing on as humans. This layer is survivable because it is cool and brittle.
It contains the earth's crust which is divided into the oceanic and continental crusts. The latter is the part of the mantle that has the various continents and therefore the land on which humans live.
The Lithosphere also includes some of the uppermost mantle but this part is not as hot at the other parts.
The lithosphere is broken up into various bodies known as tectonic plates which float around on the mantle. It is the reason why continents are constantly shifting.
In conclusion, this is the Lithosphere.
Find out more on the Lithosphere at https://brainly.com/question/10508547
#SPJ1
