What was one of the Abbasid caliphate's major achievements during its
golden age?

(b) britain had a much larger navy than the u.s.

(d) the u.s. had a small army compared to britain.

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.

the principle of popular sovereignty is most closely related to the concept of

democracy