1. Match the columns:
| Column I | Column II |
|---|---|
| A. Magnesium | 1. Mantle |
| B. Upper layer of the earth's crust | 2. Sima |
| C. Light rocks of the lithosphere | 3. Bill |
| D. Small Peninsula | 4. Sial |
Select the correct answer using the codes given below:
| A | B | C | D | |
|---|---|---|---|---|
| (a) | 2 | 3 | 4 | 1 |
| (b) | 3 | 2 | 1 | 4 |
| (c) | 1 | 3 | 4 | 2 |
| (d) | 2 | 1 | 4 | 3 |
Answer: (d)
Explanation:
Magnesium is a major component of Sima, which forms the lower layer of the Earth’s crust (A–2).
The upper layer of the Earth’s crust is composed of Sial, rich in silica and aluminium (B–1).
Light rocks of the lithosphere are associated with the mantle region (C–4).
A small peninsula is known as a bill (D–3).
Hence, the correct matching sequence is 2143.