Does the sentence "For example, the FRC in Lenexa, Kansas holds items from the treatment of John F. Kennedy after his fatal shooting in 1963." provide a valid answer to the question "Which Federal Records Center houses materials relevant to JFKs assassination?"

A: yes

Does the sentence "The goals of plant ecology are to understand the causes of their distribution patterns, productivity, environmental impact, evolution, and responses to environmental change." provide a valid answer to the question "What is the goal of plant ecology?"

A: yes

Does the sentence "Invalidation is separate from withdrawal, suspension, or termination (addressed above), which all involve an alteration in the consent of the parties of a previously valid treaty rather than the invalidation of that consent in the first place." provide a valid answer to the question "Which processes simply alter the consent given by parties to a previously valid treaty rather than invalidating the consent completely?"

A: yes

Does the sentence "It can, for instance, bring the wave to a focus or alter the wave front in other ways, generally in order to maximize the directivity of the antenna system." provide a valid answer to the question "A refractor can be compared to what type of viewing?"

A:
no