Question:
Choose your answer: Is "Corrosion resistance of glass can be achieved by dealkalization, removal of the alkali ions from the glass surface by reaction with e.g. sulfur or fluorine compounds." a good answer to the question "How can glass be prevented from corroding?"
Answer:
yes

Question:
Choose your answer: Is "Biofilms are also important in medicine, as these structures are often present during chronic bacterial infections or in infections of implanted medical devices, and bacteria protected within biofilms are much harder to kill than individual isolated bacteria." a good answer to the question "Which bacteria is more difficult to eradicate?"
Answer:
yes

Question:
Choose your answer: Is "According to Nasser's vice president Zakaria Mohieddin, although "Amer had absolute authority over the armed forces, Nasser had his ways of knowing what was really going on"." a good answer to the question "Who was Nassir's vice president?"
Answer:
yes