MCQOPTIONS
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MCQOPTIONS
| 1. |
The length of the tropical years (the time interval between successive occurrences of the spring equinox) is decreasing very slowly as a result of _________________ |
| A. | small, progressive change in earth's orbit around the sun |
| B. | both (a) and (b) |
| C. | small, progressive changes in the earth's rotational speed |
| D. | None of the above |
| Answer» C. small, progressive changes in the earth's rotational speed | |