MCQOPTIONS
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| 1. |
Which of the following statements are valid for Tectonic plates1. Include the crust and the uppermost mantle2. Are the outermost shell of the solid earth?3. Are a rigid, solid layer about 100 km thick? |
| A. | Only 1 |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 1, 2 and 3 |
| Answer» E. | |