question:
However, one thing was clear: whatever the exact nature and causes of new variations, Darwin knew from observation and experiment that breeders were able to select such variations and produce huge differences in many generations of selection.
What did Darwin learn about about the characteristics of domestic animals?

answer: no

question:
Following the quake, experts and the general public sought information on whether or not the earthquake could have been predicted in advance, and whether or not studying statistics related to the quake could result in better prediction of earthquakes in the future.
How long had it been since an earthquake of similar magnitude?

answer: no

question:
Lucretius, in his On the Nature of Things, attempted to explicate science in an epic poem.
What Roman poet attempted to develop science in their poetry?

answer: yes

question:
Finally in the midst of scandal and failure in maintaining its nuclear arsenal, the civilian and military leaders of the air force were replaced in 2008.
When were the military leaders replaced after a scandal over failure to maintain its nuclear arsenal?

answer:
yes