Consider the following lines of Longitude and Latitude: 1. Prime Meridian 2. Tropic of Cancer 3. Equator Which of the above lines is/are a Great Circle?
1 and 3 only
Correct Answer: (c) 1 and 3 only
Explanation: The Equator and the Prime Meridian are Great Circles. The Tropic of Cancer is not a Great Circle as it is a parallel and not a line that divides the Earth into two equal halves.
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 ?