Which one of the following best describes the Lithosphere ?
[amp_mcq option1=”Upper and lower mantle” option2=”Crust and core” option3=”Crust and upper mantle” option4=”Lower mantle and core” correct=”option3″]
This question was previously asked in
UPSC NDA-2 – 2021
The correct option is C, Crust and upper mantle.
The Earth’s structure is typically described in terms of layers: the crust, the mantle, and the core. These layers can be further divided based on physical properties (like rigidity) or chemical composition. The Lithosphere is defined as the rigid outer layer of the Earth. It consists of the entire crust (continental and oceanic) and the uppermost, rigid part of the mantle, often called the lithospheric mantle.