D, I believe the answer is D
During the Hellenistic Age, Archimedes made advancements in "mathematics"--specifically in the realm of geometry, since he developed innovative ways to calculate volume, area, etc.
The technology that was ignored prior to the attack on the
Pearl Harbor was the radar. The reason that it was ignored during the attack
because of the fact that it wasn’t new or evolved and that it is still
considered to be experimental.
Since the main economic activities revolve around the NASA's space center because of the quantity of people it attracts and works there, once the facilities are closed you can predict their average household income shall decrease because there will not be as many people around anymore. This has happened in other cases with petroleum companies, many towns have formed around their facilities and once they move the towns have to face a big income decrease.
Answer:
Feudal aid is the legal term for one of the financial duties required of a feudal tenant or vassal to his lord. Variations on the feudal aid were collected in England, France, Germany and Italy during the Middle Ages, although the exact circumstances varied.
Explanation: