It would be "C. multistory dwellings built alongside cliff walls" that is not an example of an environmental adaptation made by early peoples of the North American continent, since these people usually inhabited flat lands.
The answer is a because interchangeable parts made everything be a lot more easy to take apart becuase instead of everything be made of one part they had multiple parts
On August 3, 1492, Columbus set sail from Spain to find an all-water route to Asia. On October 12, more than two months later, Columbus landed on an island in the Bahamas that he called San Salvador; the natives called it Guanahani.On May 30, 1498, Christopher Columbus left Sanlúcar, Spain with six ships for his third trip to the New World. ... Columbus sailed to the Portuguese island of Porto Santo, then spent some in Madeira with the Portuguese captain João Gonçalves da Camara. He arrived at Gomera in the Canary Islands on June 19.
There were many important Union generals during the American Civil War. ... Union Army during the later years of the civil war, and later became the President of The United States.
