Which of the following statements with reference to L-Wave or Long Wave generated by an earthquake is/are correct? 1. They follow the Earth's circumference 2. They travel at more or less at a constant rate
Both 1 and 2
Correct Answer: (c) Both 1 and 2
Explanation: Both statements are true. L-waves follow the Earth's circumference and travel at a relatively constant speed.
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 ?