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.
<span>Current drag is a device that is used to measure the sub-surface currents. Sub-surface currents are the peculiar type of current that is associated with oceans which flows under the normal surface currents. They are mainly determined by density of the water and the temperature aspects.</span>
This is the Grand Canal that served to bring water from the south to the north of China. It served agriculture, navigation and trade purposes. The Great Wall runs from east to west in northern China. And the yellow line does not correspond to the course of either the Yangtze or the Huang He rivers.
Answer: When the Methodists in America were separated from the Church of England because of the American Revolution, John Wesley himself provided a revised version of the Book of Common Prayer called The Sunday Service of the Methodists; With Other Occasional Services (1784).
