Does the sentence "Furthermore, in Britain the volunteer Observer Corps formed in 1925 provided a network of observation posts to report hostile aircraft flying over Britain." provide a valid answer to the question "How many different countries developed radar starting in the 1930s?"

A: no

Does the sentence "It begins at Avenue C and ends at West Street." provide a valid answer to the question "Where does 14th Street end?"

A: yes

Does the sentence "The Hanseatic League was not exclusively German in any ethnic sense: many towns who joined the league were outside the Holy Roman Empire and a number of them may only loosely be characterized as German." provide a valid answer to the question "What is the German work for German town law?"

A: no

Does the sentence "By photosynthesis green plants convert solar energy into chemically stored energy, which produces food, wood and the biomass from which fossil fuels are derived." provide a valid answer to the question "What is the process by which green plants convert solar energy to stored energy?"

A:
yes