The correct answer should be the third one you listed. The "current drag" then is a device that is used in order to measure the sub-surface currents. This device and the measurements it provides are extremely important for the field of oceanography which studies the aspects of the oceans both the physical and the biological ones.
Answer:
The answer is below
Explanation:
The lasting legacy of the Battle of McHenry is the sanctification of the United States flag and the formulation of the United States national anthem. It also includes a naval tradition and the US has international recognition as a powerful sovereign nation.
The battle took place between the US and British navy in 1812 between September 13 and 14. It witnessed the repulsion of the British navy despite the American navy losing four personnel and having 24 wounded.
It was mostly Christianity that helped to unite the people of Europe during the Middle Ages, but it should be noted that this was also a very divisive and oftentimes violent religion as well.
