Problem: Originally, the hardware architecture was so closely tied to the Mac OS operating system that it was impossible to boot an alternative operating system. The most common workaround, is to boot into Mac OS and then to hand over control to a Mac OS-based bootloader application. Used even by Apple for A/UX and MkLinux, this technique is no longer necessary since the introduction of Open Firmware-based PCI Macs, though it was formerly used for convenience on many Old World ROM systems due to bugs in the firmware implementation.[citation needed] Now, Mac hardware boots directly from Open Firmware in most PowerPC-based Macs or EFI in all Intel-based Macs.
What were Open Firmware-based PCI Macs used as a convenience because of?
---
Answer: bugs in the firmware implementation

Problem: Various methods have been used in the history of the American colonies and the United States but only five methods are currently used. Historically, burning, crushing, breaking on wheel, and bludgeoning were used for a small number of executions, while hanging was the most common method. The last person burned at the stake was a black slave in South Carolina in August 1825. The last person to be hanged in chains was a murderer named John Marshall in West Virginia on April 4, 1913. Although beheading was a legal method in Utah from 1851 to 1888, it was never used.
In what state did the first burning at the stake take place in the US?
---
Answer: unanswerable

Problem: The islands have been shaped by numerous glaciations during the Quaternary Period, the most recent being the Devensian.[citation needed] As this ended, the central Irish Sea was deglaciated and the English Channel flooded, with sea levels rising to current levels some 4,000 to 5,000 years ago, leaving the British Isles in their current form. Whether or not there was a land bridge between Great Britain and Ireland at this time is somewhat disputed, though there was certainly a single ice sheet covering the entire sea.
What happened with the Devensian glaciation ended?
---
Answer:
the English Channel flooded