MP Board · Class 11 · Geography · Interior of the EarthThe upper portion of the mantle is called:
Step-by-Step Solution
The upper portion of the mantle is known as the asthenosphere, which is the main source of magma and extends up to 400 km.
Detailed Options Breakdown
Option : Lithosphere
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Interior of the Earth.
Option 1: Asthenosphere (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Barisosphere
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Interior of the Earth.
Option 3: Mesosphere
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Interior of the Earth.
💡 Study Guide: This question tests core syllabus concepts from Interior of the Earth. For formulas, key summaries, and mock exam reference guides, read the full Interior of the Earth Revision Notes.