MCQOPTIONS
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| 1. |
Which of the following is responsible for the earth?s magnetic field? |
| A. | convective currents in earth?s core. |
| B. | Diversive current in earth?s core. |
| C. | Rotational motion of earth. |
| D. | Translational motion of earth. |
| Answer» B. Diversive current in earth?s core. | |