How did the u. s. deal with the german subs who were sinking american ships as they crossed the ocean?

The change in tactics was what eventually turned the tables of the Battle of the Atlantic. Navy Frigates and Destroyers were equipped with Radar, allowing them to detect a surfaced submarine at night.

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answer: the correct answer is d. a christian revivalist movement in the u.s. during the early 19th century

explanation: the second great awakening was lead by the preachers of baptist and methodist congregations in order to gain support for the protestant religion from the 1790's to 1840's