Q: Does "Gunpowder was known in Europe by the mid-13th century with a recorded use in European warfare by the English against the Scots in 1304, although it was merely used as an explosive and not as a weapon." provide a valid answer to "Who was recorded as using gunpowder in 1304?"?
A: yes

Q: Does "In the United States, the Environmental Protection Agency (EPA) is responsible for regulating pesticides under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and the Food Quality Protection Act (FQPA)." provide a valid answer to "Who is protected by EPA regulations?"?
A: no

Q: Does "By the beginning of the 20th century, the trans-Saharan trade had clearly declined because goods were moved through more modern and efficient means, such as airplanes, rather than across the desert." provide a valid answer to "During what time were good moved through more modern means?"?
A: yes

Q: Does "During ordinary operation, the tungsten of the filament evaporates; hotter, more-efficient filaments evaporate faster." provide a valid answer to "What determines how fast a tungsten filament evaporates?"?
A:
yes