| Question about the Milankovitch Cycle? | 1 | | | | |
| Do submarines use water pumps to fill/empty their buoyancy tanks? | 1 | | | | |
| What could be causing the fall colors to be delayed this year? | 1 | | | | |
| Was what happened an EMP? | 1 | | | | |
| Is there any chance that the recent Haiti earthquake was triggered by the nearby tropical storm depression? | 0 | | | | |
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