| Are all types of smoke harmful to inhale? | 1 | | | | |
| If you don't get enough sleep, can that affect your vision? | 1 | | | | |
| Would there be more roaches if humans were not here, or do humans help them flourish? | 1 | | | | |
| At what point does appetite suppression stop working and your body requires some sort of food? | 1 | | | | |
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