Which one of the following is formed when volcanic ash is carried by running water and is deposited as a sedimentary layer?
Basalt
Correct Answer: (a) Basalt
Explanation: Basalt is formed when volcanic ash is carried by running water and deposited as a sedimentary layer.
Which one among the following processes is NOT part of chemical weathering?
| Sedimentary Rock | Process of Formation |
| 1. Chert | Chemically formed |
| 2. Geyserite | Organically formed |
| 3. Shale | Mechanically formed |
Marble is the metamorphosed form of?
Asthenosphere is:
The discontinuity present in earth's interior between lower mantle and outer core is called _________.
Which of the following igneous rocks contain silica in excess of 65%?
Which type of rocks are found in Lafagarh and Podi Uprora ?