Does the sentence "London was the world's largest city from about 1831 to 1925." provide a valid answer to the question "How many people died of cholera in London in 1848?"

A: no

Does the sentence "The mountain system has no axis of dominating altitudes, but in every portion the summits rise to rather uniform heights, and, especially in the central section, the various ridges and intermontane valleys have the same trend as the system itself." provide a valid answer to the question "What does the Great Appalachian Valley do?"

A: no

Does the sentence "The Christian and Muslim populations do, however, face religious persecution and it is hard, if not impossible, for non-Buddhists to join the army or get government jobs, the main route to success in the country." provide a valid answer to the question "Are public displays allowed for the celebration of religion in Myanmar ?"

A: no

Does the sentence "It is used as a shielding gas in welding methods such as atomic hydrogen welding." provide a valid answer to the question "How is H2 used in electrical generators at power stations?"

A:
no