The outermost part of the Earth is known as __________.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. the crust.
The outermost part of the Earth is known as the crust. The crust is the solid, outer layer of the Earth, covering the surface and varying in thickness from about 5 kilometers beneath the oceans to over 70 kilometers beneath continents. It is divided into two types: the continental crust, which is less dense and primarily composed of granite, and the oceanic crust, which is denser and mainly composed of basalt. The crust plays a crucial role in shaping Earth's surface and supporting life.