Answer:
The addition of oars and sails gave Viking boats an advantage over all other watercraft of their day in speed, shallow draft, weight, capacity, maneuverability, and seaworthiness. Viking boats were designed to be dragged across long portages as well as to withstand fierce ocean storms.
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Answer: The Tammany Hall political machine in New York. City
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Answer:
Germany's colonial empire was officially confiscated with the Treaty of Versailles after Germany's defeat in the war and each colony became a League of Nations mandate under the supervision (but not ownership) of one of the victorious powers. The German colonial empire ceased to exist in 1919.
 
        
             
        
        
        
Answer:
If the two plates are of equal density, they usually push up against each other, forming a mountain chain. If they are of unequal density, one plate usually sinks beneath the other in a subduction zone.
Explanation:
Convergent boundaries is where two plates (a continental plate and the ocean floor) get "pushed together" by subduction. If they have the same density, they will be pushed up together creating a mountain (the Himalaya's mountain is a great example). If the plates have different density then the one with more density overlaps the other.