CBSE · Class 7 · Social Science · Inside Our EarthWhat is the core mainly made up of?
Step-by-Step Solution
The core is mainly made up of nickel and iron and is therefore called nife (ni - nickel and fe - ferrous i.e., iron).
Detailed Options Breakdown
Option : Silica and Alumina
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Inside Our Earth.
Option 1: Silica and Magnesium
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Inside Our Earth.
Option 2: Nickel and Iron (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 3: Calcium and Magnesium
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Inside Our Earth.
💡 Study Guide: This question tests core syllabus concepts from Inside Our Earth. For formulas, key summaries, and mock exam reference guides, read the full Inside Our Earth Revision Notes.