This sentence means that Constitutions of different states and nations must be able to "adapt" to modern times by being amended through a formal process. This helps ensure that the state in question is able to stay relevant in modern times.
Generally speaking, the <span>kinds of films and radio programs that became popular during the Great Depression had to do with "light hearted" things that took people's minds off of the issues at hand. </span>
Is there more to the question.?
I think the first weakness is the most important to correct.