Answer:
While to the west, Portugal had navigable rivers and deep, natural ports, including Lisbon and Setubal, to provide safe harbor, to the east were disadvantages of cost, time, and hazard. One such hazard was enemies, including the kingdoms that became Spain on its own peninsula and the powerful Moors to the south.
Explanation:
Astronomers have been trying to figure out how many galaxies there are in the cosmos for a long time. To get their estimate, they employ a technique known as "representative sampling." They count the number of galaxies in each sector by dividing the sky into equal-sized parts.
D is the correct answer.
The Marshall Plan was a plan of economy recovery put forth by the United States to help rebuild Europe and to ensure that Europe remained outside the Soviet sphere of influence.
Britain is the one that won the naval arms race