Question:
Consider the following pairs with reference to sedimentary rocks and the process of their formation:
| Sedimentary Rock | Process of Formation |
|---|---|
| 1. Chert | A. Chemically formed |
| 2. Geyserite | B. Organically formed |
| 3. Shale | C. Mechanically formed |
Which of the pairs given above is/are correctly matched?
Consider the following pairs with reference to sedimentary rocks and the process of their formation:
| Sedimentary Rock | Process of Formation |
|---|---|
| 1. Chert | A. Chemically formed |
| 2. Geyserite | B. Organically formed |
| 3. Shale | C. Mechanically formed |
Which of the pairs given above is/are correctly matched?
Options:
- 1 only
- 1 and 2 only
- 2 and 3 only
- 1, 2 and 3
- 1 only
- 1 and 2 only
- 2 and 3 only
- 1, 2 and 3
Correct Answer: 1, 2 and 3
Explanation:
Chert: chemically formed from silica deposition. Geyserite: organically formed from hot spring activity. Shale: mechanically formed by compaction of clay and silt.
Chert: chemically formed from silica deposition. Geyserite: organically formed from hot spring activity. Shale: mechanically formed by compaction of clay and silt.