Question

Match the earth layers (Group I) with corresponding approximate thicknesses (Group II).
\[ \begin{array}{|l|l|} \hline \textbf{Group I} & \textbf{Group II} \\ \hline P. \ \text{Lithosphere} & 1. \ 2900 \text{ km} \\ Q. \ \text{Mantle} & 2. \ 2250 \text{ km} \\ R. \ \text{Outer Core} & 3. \ 1200 \text{ km} \\ S. \ \text{Inner Core} & 4. \ 100 \text{ km} \\ \hline \end{array} \]

• A. P-3 Q-4 R-1 S-2
• B. P-4 Q-1 R-3 S-2
• C. P-1 Q-2 R-3 S-4
• D. P-4 Q-3 R-2 S-1

Hint:

The earth's layers vary significantly in thickness, with the lithosphere being the thinnest and the mantle being the thickest.

Answer 1

The Correct Option is C

Step 1: Understanding the question.
This question asks to match the earth's layers with their approximate thicknesses. The lithosphere, mantle, core, and other layers vary in thickness.
Step 2: Analyzing the options.
(A) P-3 Q-4 R-1 S-2: Incorrect — The thicknesses are mismatched in this option.
(B) P-4 Q-1 R-3 S-2: Incorrect — The lithosphere and mantle thicknesses are swapped.
(C) P-1 Q-2 R-3 S-4: Correct — The lithosphere has a thickness of about 100 km, the mantle is about 2900 km, the outer core is around 2250 km, and the inner core is about 1200 km.
(D) P-4 Q-3 R-2 S-1: Incorrect — The mantle and outer core are mismatched in this option.
Step 3: Conclusion.
The correct answer is (C) P-1 Q-2 R-3 S-4, as it correctly matches the earth layers with their approximate thicknesses.