| How do engine setups change power output? | 1 | | | | |
| What is the statistical basis for the recommendation of 8 hours of sleep? | 1 | | | | |
| Could we expect a return of mega-floura/fauna as a result of higher Co2 concentrationa? | 1 | | | | |
| As atmospheric Co2 concentration rises, can we expect to see plants grow bigger or even into proper megaflora because plants get more fuel? Would that lead to larger animals? | 1 | | | | |
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